Golf club weight attachment mechanisms and related methods

ABSTRACT

Embodiments of golf club weight attachment mechanisms are described herein. In some embodiments, a golf club head comprises a head body with an interior cavity, a shell portion, and a bracket with a weight member coupled to the bracket. In one embodiment, the bracket and the weight member can be configured to be fully contained within the interior cavity. Other examples and related methods are also described herein.

CROSS REFERENCE TO RELATED APPLICATIONS

This is a continuation-in-part of U.S. patent application Ser. No.15/862,419, filed Jan. 4, 2018, which is a continuation of U.S. patentapplication Ser. No. 15/369,303, now U.S. Pat. No. 9,878,222, filed Dec.5, 2016, which is a continuation of U.S. patent application Ser. No.14/614,175, now U.S. Pat. No. 9,539,475, filed Feb. 4, 2015, which is acontinuation of U.S. patent application Ser. No. 13/745,507, now U.S.Pat. No. 8,951,143 filed Jan. 18, 2013, which claims the benefit of U.S.Provisional Application No. 61/590,228, filed Jan. 24, 2012, which is acontinuation-in-part of U.S. patent application Ser. No. 12/762,182, nowU.S. Pat. No. 8,449,405, filed Apr. 16, 2010, which claims the benefitof U.S. Provisional Application No. 61/186,311, filed Jun. 11, 2009.This further claims the benefit of U.S. Provisional Application No.62/483,246, filed Apr. 7, 2017. The contents of all of theabove-described applications are incorporated fully herein by reference.

TECHNICAL FIELD

The present disclosure related generally to sports equipment, andrelates, more particularly, to golf club weight attachment mechanismsand related methods.

BACKGROUND

During the evolution of club head design for sports equipment, severalstrategies have been employed to manipulate or alter the physical and/orgaming characteristics of club heads. For example, golf club heads havebeen designed to accommodate weights that alter or adjust thedistribution of mass across a body of such club heads.

The placement of such weights, however, can be problematic in somesituations. For example, there can be cases where materials used to formthe weights may not be compatible for proper bonding with materials usedto form the body of the club head. In such cases, bonding mechanismssuch as welding may not provide the structural integrity required by thebond to withstand stresses while still properly securing the weights tothe club head. Using other weight materials that may be compatible forbonding with the body of the club head may lead to other problems, suchas unwieldy or larger weight configurations that would be harder toaccommodate within the body of the club head for proper weightdistribution and/or aesthetic considerations.

Accordingly, needs exist for mechanisms and/or procedures capable ofovercoming the limitations described above.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure may be better understood from a reading of thefollowing detailed description of examples of embodiments, taken inconjunction with the accompanying figures.

FIG. 1 illustrates a back perspective view of a club having a body and amulti-density weight.

FIG. 2 illustrates an exploded back perspective view of the club of FIG.1.

FIG. 3 presents a top view of the multi-density weight of the club ofFIG. 1.

FIG. 4 shows a cross sectional view of the multi-density weight of FIG.1, along line 4-4 of FIG. 3.

FIG. 5 illustrates a back perspective exploded view of another clubhaving a body and a multi-density weight.

FIG. 6 presents a top view of the multi-density weight of the club ofFIG. 5.

FIG. 7 shows a cross sectional view of the multi-density weight of FIG.5, along line 7-7 of FIG. 6.

FIG. 8 presents a top view of a multi-density weight.

FIG. 9 shows a cross sectional view of the multi-density weight of FIG.8, along line 9-9 of FIG. 8.

FIG. 10 illustrates a flowchart for a method of manufacturing a club inaccordance with the present disclosure.

FIG. 11 illustrates a flowchart of a method for sintering in accordancewith one example of the method of FIG. 10.

FIG. 12 illustrates a cross section of a mold used to form a weightportion of a multi-density weight.

FIG. 13 illustrates a cross section of the mold of FIG. 12 used to formanother weight portion of the multi-density weight of FIG. 12.

FIG. 14 illustrates an exploded cross sectional view of a multi-densityweight similar to the multi-density weight of FIGS. 1-4.

FIG. 15 illustrates an exploded cross sectional view of a multi-densityweight similar to the multi-density weight of FIGS. 1-4 but comprisingbarbing elements.

FIG. 16 illustrates an exploded cross sectional view of a multi-densityweight being coupled with a recess of a body of a club head viacompression elements.

FIG. 17 illustrates a cross sectional view of the multi-density weightand recess of FIG. 16 coupled together.

FIG. 18 shows a multi-density weight being pressed into a recess a bodyof a club head comprising a deformable lip.

FIG. 19 shows the multi-density weight and recess of FIG. 18 coupledtogether.

FIGS. 20 and 21 show different cross-sectional views of multi-densityweights secured to receptacles in golf club bodies according to otherembodiments.

FIG. 22 illustrates a side cross-sectional view of a golf club head,along line I-I of FIG. 23, with a weighted shell portion coupledthereto.

FIG. 23 illustrates a bottom view of the golf club head of FIG. 22.

FIG. 24 illustrates a side cross-sectional view the golf club head ofFIG. 22 without the weighted shell portion coupled to a body openingthereof.

FIG. 25 illustrates a side cross-sectional view of a weight member priorto coupling to a bracket of the weighted shell portion of FIG. 22.

FIG. 26 illustrates a side cross-sectional view of the weight membersecured to the bracket after swedging by a press.

FIG. 27 illustrates a side cross-sectional view of a golf club head witha weighted shell portion coupled thereto.

FIG. 28 illustrates a side cross-sectional view of the weight memberprior to encapsulation within the shell portion of FIG. 27.

FIG. 29 illustrates a side cross-sectional view of the weight memberafter encapsulation within the shell portion of FIG. 27.

FIG. 30 illustrates a portion of a golf club head comprising a weightedshell portion coupled thereto.

FIG. 31 illustrates a side cross-sectional view of a weight memberencapsulated within a cast shell portion.

FIG. 32 illustrates a flowchart for a method which can be used toprovide, form, and/or manufacture a golf club head with a weighted shellportion.

FIG. 33 illustrates a rear view of a golf club head with a multi-densityweight within a receptacle.

FIG. 34 illustrates the golf club head with the multi-density weightwithin the receptacle of FIG. 33 along a cross-sectional line 35-35.

FIG. 35 illustrates a base surface of the multi-density weightconfigured to couple with the receptacle base of an interior surface ofthe golf club head in FIG. 34.

FIG. 36 illustrates a cross section of another embodiment of amulti-density weight within the receptacle on the golf club head of FIG.33 along the cross-sectional line 35-35.

FIG. 37 illustrates a rear view of the multi-density weight of FIG. 36.

FIG. 38 illustrates a rear view of another embodiment of a golf clubhead with a multi-density weight within a receptacle.

FIG. 39 illustrates the golf club head with the multi-density weightwithin the receptacle of FIG. 38 along a cross-sectional line 39-39.

FIG. 40 illustrates a perspective view of another embodiment of a golfclub head with a multi-density weight within a receptacle.

FIG. 41 illustrates the golf club head with the multi-density weightwithin the receptacle of FIG. 40 along a cross-sectional line 42-42.

FIG. 42 illustrates a perspective view of another embodiment of a golfclub head with a multi-density weight within a receptacle.

FIG. 43 illustrates the golf club head with the multi-density weightwithin the receptacle of FIG. 42 along a cross-sectional line 44-44.

For simplicity and clarity of illustration, the drawing figuresillustrate the general manner of construction, and descriptions anddetails of well-known features and techniques may be omitted to avoidunnecessarily obscuring the present disclosure. Additionally, elementsin the drawing figures are not necessarily drawn to scale. For example,the dimensions of some of the elements in the figures may be exaggeratedrelative to other elements to help improve understanding of embodimentsof the present disclosure. The same reference numerals in differentfigures denote the same elements.

The terms “first,” “second,” “third,” “fourth,” and the like in thedescription and in the claims, if any, are used for distinguishingbetween similar elements and not necessarily for describing a particularsequential or chronological order. It is to be understood that the termsso used are interchangeable under appropriate circumstances such thatthe embodiments described herein are, for example, capable of operationin sequences other than those illustrated or otherwise described herein.Furthermore, the terms “include,” and “have,” and any variationsthereof, are intended to cover a non-exclusive inclusion, such that aprocess, method, system, article, device, or apparatus that comprises alist of elements is not necessarily limited to those elements, but mayinclude other elements not expressly listed or inherent to such process,method, system, article, device, or apparatus.

The terms “left,” “right,” “front,” “back,” “top,” “bottom,” “over,”“under,” and the like in the description and in the claims, if any, areused for descriptive purposes and not necessarily for describingpermanent relative positions. It is to be understood that the terms soused are interchangeable under appropriate circumstances such that theembodiments of the apparatus, methods, and/or articles of manufacturedescribed herein are, for example, capable of operation in otherorientations than those illustrated or otherwise described herein.

The terms “couple,” “coupled,” “couples,” “coupling,” and the likeshould be broadly understood and refer to connecting two or moreelements, mechanically or otherwise. Coupling (whether mechanical orotherwise) may be for any length of time, e.g., permanent orsemi-permanent or only for an instant.

The absence of the word “removably,” “removable,” and the like near theword “coupled,” and the like does not mean that the coupling, etc. inquestion is or is not removable.

As defined herein, two or more elements are “integral” if they arecomprised of the same piece of material. As defined herein, two or moreelements are “non-integral” if each is comprised of a different piece ofmaterial.

DESCRIPTION

Described herein is a golf club head, comprising a multi-density weight.In some embodiments, the multi-density weight can include multipleweight components. For example, the multi-density weight can comprise afirst weight component and a second weight component bounded within thefirst weight component. The first weight component comprises a materialhaving a low density capable of bonding with the material of the clubhead. The second weight component comprises a material having a higherdensity capable of manipulating the club head CG. In many embodiments,the second weight component of the multi-density weight can becompletely bounded by the first weight component. In other embodiments,the second weight component can be partially bounded by the first weightcomponent. The multi-density weight can form any portion of the golfclub head. In some embodiments, the multi-density weight can form aportion of a toe region of the golf club head. In some embodiments, themulti-density weight can form a portion of a toe region and a rearregion of the golf club head. In some embodiments, the multi-densityweight can form a portion of a toe region, a sole region, and a rearregion of the golf club head. In other embodiments, the multi-densityweight can form a portion of a toe region and a sole region of the golfclub head. Further, the first and second weight components of themulti-density weight can be formed integrally with one another usingmethods such as additive manufacturing or 3D printing. In otherembodiments, the first and second weight components of the multi-densityweight can be formed separately and then coupled together by a swedgedbond, an epoxy bond, a sintered bond, and or a shrink fit bond. Themulti-density weight can then be coupled to the club head body by a weldbond, a brazed bond, a compression ring, and or by pressing themulti-density weight to club head body.

Altering the mass distribution in a golf club head can move the golfclub head center of gravity “CG” and in turn greatly affect the clubhead performance characteristics. For example, if the CG of a golf clubhead is positioned near the front of the club head it can result in alower spin being induced on the ball after impact. If the CG of the clubhead is positioned further back on the club head it can result in ahigher club head MOI resulting in a club head, which has a greaterresistance to rotation during the swinging motion and greater club headforgiveness for off center hits. Including a weight in a specificlocation on the club head can manipulate the club head CG to optimizegolf club head performance. Ideally, the weight is a high densitymaterial which can concentrate the added mass to a specific location onthe club head. However, golf club heads are preferably constructed fromlight weight low density materials making it difficult to couple (eg. bywelding) a high density weight directly to the golf club head.

In other embodiments, the multi-density weight can comprise a shellportion and a weight member coupled to the shell portion. The shellportion can comprise a material having a low density and capable ofbonding with the material of the club head. The weight member cancomprise a material having a higher density capable of manipulating theclub head CG. In many embodiments, the weight member of themulti-density weight can be completely bounded by the shell portion. Inother embodiments, the weight member can be partially bounded by theshell portion. Further, the weight member and the shell portion can becoupled together by mechanical bonds, such as a bracket, a malleablelip, encapsulating the weight member between two shell sheets, and or bycasting the shell portion and injection molding the weight member withinthe shell. The multi-density weight can then be coupled to the golf clubhead by welding, or brazing the shell portion to the club head body.

In some embodiments, the golf club head can be a wood or hybrid typegolf club head, wherein a wood or hybrid type club head can be a driver,a fairway wood, a hybrid or a cross-over type club head. A wood orhybrid type golf club head can have a volume within the range of 200 ccto 500 cc. In some embodiments, the wood or hybrid type golf club headcan have a volume within the range of 200 cc-250 cc, 225 cc-275 cc, 250cc-300 cc, 275 cc-325 cc, 300 cc-350 cc, 325 cc-375 cc, 350 cc-400 cc,375 cc-425 cc, 400 cc-450 cc, 425 cc-475 cc, 450 cc-500 cc. For example,the volume of the golf club head can be 200 cc, 250 cc, 300 cc, 350 cc,400 cc, 440 cc, 445 cc, 450 cc, 455 cc, 460 cc, 465 cc, 470 cc, 475 cc,480 cc, 485 cc, 490 cc, 495 cc, or 500 cc. Further, the loft on a woodor hybrid type golf club head can be within the range of 5 degrees to 50degrees. In some embodiments, the loft on a wood or hybrid type golfclub head can be within the range of 5-15 degrees, 10-20 degrees, 15-25degrees, 20-30 degrees, 25-35 degrees, 30-40 degrees, 35-45 degrees, or40-50 degrees. For example, the golf club head can have a loft of 5degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35degrees, 40 degrees, 45 degrees, or 50 degrees.

In other embodiments, the golf club head can be an iron type golf clubhead. An iron type golf club head can have a volume within the range of10 cc to 100 cc. In some embodiments, the iron type golf club head canhave a volume within the range of 10 cc-30 cc, 20 cc-40 cc, 30 cc-50 cc,40 cc-60 cc, 50 cc-70 cc, 60 cc-80 cc, 70 cc-90 cc, or 80 cc-100 cc. Forexample, the volume of the golf club head can be 10 cc, 20 cc, 30 cc, 40cc, 50 cc, 60 cc, 70 cc, 80 cc, 90 cc, or 100 cc. Further, the loft ofthe iron type golf club head can be within the range of 10 degrees to 80degrees. In some embodiments, the loft of the iron type golf club headcan be with the range of 10-20 degrees, 15-25 degrees, 20-30 degrees,25-35 degrees, 30-40 degrees, 35-45 degrees, 40-50 degrees, 45-55degrees, 50-60 degrees, 55-65 degrees, 60-70 degrees, 65-75 degrees, or70-80 degrees. For example, the golf club head can have a loft of 10degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70degrees, 75 degrees, or 80 degrees.

Before any embodiments of the disclosure are explained in detail, it isto be understood that the disclosure is not limited in its applicationto the details of construction and the arrangement of components setforth in the following description or illustrated in the followingdrawings. The disclosure is capable of other embodiments and of beingpracticed or of being carried out in various ways.

I) Multi-Density Weight Comprising Multiple Weight Components

In one embodiment, an apparatus can comprise a body and a multi-densityweight. The multi-density weight can be 1100, 3100, 4100, 5100, 6100,7100, or 9100. The body can comprise a receptacle at a surface of thebody, where the surface of the body can be proximate to at least one ofa hosel, an upper toe region, a lower toe region, a heel region, abackside region, an upper-half region, or a lower-half region of thebody. The multi-density weight can comprise a first weight componentcomprising a first density, an inner portion and a periphery around theinner portion, and a second weight component comprising a second densitydifferent from the first density and secured along the inner portion ofthe first weight component. The first weight component in the respectivemulti-density weight can be 1110, 3110, 4110, 5110, 6110, 7110, or 9110.The second weight component in the respective multi-density weight canbe 1120, 3120, 4120, 5120, 6120, 7120, or 9120. In some embodiments, amulti-density weight can comprise more than two weight componentscomprising different densities. The body, the first weight component,and the second weight component can comprise materials different fromeach other, where the second weight component can comprise a materialhaving a weld-averse trait with respect to the body. The receptacle cancomprises a receptacle base and a receptacle wall circumscribing thereceptacle base, while the multi-density weight can comprise a perimetersecured along the receptacle wall.

As described below, the multi-density weight 1100, 3100, 4100, 5100,6100, 7100, and 9100 can be coupled to any region of the club head body1300, 1400, 1500, and 1600 respectively, depending on the type of clubhead involved and the desired effect upon the center of gravity, massdistribution, launch angle, hook/slide tendencies, and/or othercharacteristics of the club head. As described below, the multi-densityweight 3100, 4100, 6100, 7100, and 9100 can be similar to themulti-density 1100 and 5100, except the multi-density weight 3100, 4100,6100, 7100, and 9100 can comprise a different shape and/or be coupled toa different region of the club head body. The differences in shape andcoupling locations are described in detailed down below.

In some embodiments, the multi-density weight 1100, 3100, 4100, 5100,6100, 7100, and 9100 can be coupled to a lower toe region as shown inFIGS. 1, 2, 5, and 33. In some embodiments, the multi-density weight1100, 3100, 4100, 5100, 6100, 7100, and 9100 can be coupled to a toeregion, a sole region and/or a rear region of the club head body asshown in FIG. 38-43. In other embodiments, the multi-density weight1100, 3100, 4100, 5100, 6100, and 9100 can be coupled to a sole regionand a toe region of the club head body as shown in FIG. 42. Themulti-density weight 1100, 3100, 4100, 5100, 6100, 7100, and 9100 cancomprise a first weight component 1110, 3110, 4110, 5110, 6110, 7110,and 9110 respectively, which can be formed from a low density materialand a second weight component 1120, 3120, 4120, 5120, 6120, 7120, and9120 respectively, which can be formed from a high density material. Thelow and high density materials for the multi-density weight 3100, 4100,6100, 7100, and 9100 can be similar to the materials described below forthe multi-density weight 1100 and 5100. In some embodiments, the firstweight component 1110, 3110, 4110, 5110, 6110, 7110, and 9110 completelybounds the second weight component 1120, 3120, 4120, 5120, 6120, 7120,and 9120 on all surfaces. In other embodiments, the first weightcomponent 1110, 3110, 4110, 5110, 6110, 7110, and 9110 partially boundsthe second weight component 1120, 3120, 4120, 5120, 6120, 7120, and 9120on at least one surface. In many embodiments, the second weightcomponent 1120, 3120, 4120, 5120, 6120, 7120, and 9120 can be embeddedinto the first weight component 1110, 3110, 4110, 5110, 6110, 7110, and9110. The specific surfaces the first weight component bounds the secondweight component are described down below in the various embodiments.

In many embodiments, the multi-density weight 1100, 3100, 4100, 5100,6100, 7100, and 9100 can have the second weight component 1120, 3120,4120, 5120, 6120, 7120, and 9120 comprising approximately 90% of thetotal volume of the multi-density weight and the first weight component1110, 3110, 4110, 5110, 6110, 7110, and 9110 comprising approximately10% of the total volume of the multi-density weight. In otherembodiments, the second weight component 1120, 3120, 4120, 5120, 6120,7120, and 9120 can comprise greater than 40%, greater than 50%, greaterthan 60%, greater than 70%, greater than 80%, greater than 90%, orgreater than 95% of the total volume of the multi-density weight 1100,3100, 4100, 5100, 6100, 7100, and 9100.

Further, the multi-density weight 3100, 4100, 6100, 7100, and 9100 cancomprise a first weight component thickness 3130, 4130, 6130, 7130, and9130 respectively, as shown in FIGS. 34, 36, 39, 41, and 43. Themulti-density weight 1100 and 5100 can comprise a first weight componentthickness. The first weight component thickness 3130, 4130, 6130, 7130,and 9130 can be measured from one end of the first weight component3110, 4110, 6110, 7110, and 9110 to an adjacent end of the second weightcomponent 3120, 4120, 6120, 7120, and 9120. In some embodiments, thefirst weight component thickness 3130, 4130, 6130, 7130, and 9130 can bethe same. In other embodiments, the first weight component thickness3130, 4130, 6130, 7130, and 9130 can be different from each other. Insome embodiments, the first weight component thickness 3130, 4130, 6130,7130, and 9130 can be greater than or equal to 0.075 inch, greater thanor equal to 0.076 inch, greater than or equal to 0.077 inch, greaterthan or equal to 0.078 inch, greater than or equal to 0.079 inch,greater than or equal to 0.080 inch, greater than or equal to 0.085inch, greater than or equal to 0.090 inch, greater than or equal to0.095 inch, or greater than or equal to 0.10 inch.

FIGS. 33-43 illustrate exemplary embodiments of the multi-density weight3100, 4100, 6100, 7100, and 9100 positioned within receptacles 3210,6210, 7210, and 9210 respectively, in various locations on the golf clubhead body 1300, 1400, 1500, and 1600. The receptacle 2210, 3210, 6210,7210, 9210 can comprise a recess or cutout in the golf club head body11, 1300, 1400, 1500, 1600.

The multi-density weight 1100, 3100, 4100, 5100, 6100, 7100, 9100 cancomprise various shapes and dimensional configurations. In someembodiments, the multi-density weight 1100, 3100, 4100, 5100, 6100,7100, and 9100 can comprise a shape and dimension that is complementaryto the receptacle 2210, 3210, 6210, 7210, and 9210. In otherembodiments, the multi-density weight can comprise a shape and dimensionthat only partially fills the receptacle 2210, 3210, 6210, 7210, and9210. In some embodiments, the multi-density weight 1100, 3100, 4100,5100, 6100, 7100, and 9100 can couple to the receptacle along aplurality of surfaces. In other embodiments, the multi-density weight1100 3100, 4100, 5100, 6100, 7100, and 9100 can couple to the receptacle2210, 3210, 4210, 6210, 7210, and 9210 along any number of surfaces,such as one, two, three, four, five or six surfaces. In someembodiments, the multi-density weight 3100 and 4100 can have fivesurfaces bounded within the receptacle 3210 and one surface exposed tothe exterior of the club head 1300. In other embodiments, themulti-density weight 6100, 7100, and 9100 can be partially bounded withfour or less surfaces bounded within the receptacle 6210, 7210, and 9210and the remaining surfaces exposed to the exterior of the club head body1400, 1500, and 1600. The club head body 1300, 1400, 1500, and 1600 canbe any iron-type golf club head such as a cavity-back iron (FIG. 33-41)capable of receiving an insert, a hollow body iron (FIG. 42 and FIG.43), or a muscle-back iron.

A. Semi-Circular Multi-Density Weight

FIG. 1 illustrates a rear perspective view of club 1 having body 1200and multi-density weight 1100. FIG. 2 illustrates an exploded rearperspective view of club 1. FIG. 3 presents a top view of multi-densityweight 1100. FIG. 4 shows a cross sectional view of multi-density weight1100 along a line 3-3 of FIG. 3.

Club 1 is illustrated in FIG. 1 as a golf club, and comprises club head11 and shaft 12, where club head 11 comprises body 1200 and hosel 1300.Shaft 12 is coupled in the present embodiment to club head 11 via hosel1300. In a different embodiment, shaft 12 can couple to club head 11directly without the need of hosel 185, such as through a bore (notshown) into club head 11. Although club head 11 is illustrated herein asan iron head, it will be understood that other embodiments of thepresent invention can comprise a different type of golf club head, suchas a putter head, a driver head, a hybrid head, and a fairway wood head,among others. The teachings in this disclosure are not limited to anyspecific type of club or club head.

As shown in FIGS. 1-2, multi-density weight 1100 is configured to couplewith body 1200 at receptacle 2210. In some embodiments, the receptacle2210 can be on the exterior of the club head body 1200 configured toreceive the multi-density weight 1100. In other embodiments, thereceptacle 2210 can be a recess, hole, or cavity into the club head body1200 configured to receive the multi-density weight 1100. In otherembodiments, the receptacle 2210 can be an entire portion or region ofthe club head body 1200 that is configured to receive the multi-densityweight 1100. For example, the receptacle 2210 can be a void along theentire toe portion of the body 1200, or the receptacle can be a voidalong the entire back portion of the club head body, or the receptaclecan be any portion of the club head body 1200. Although the receptacle2210 is located proximate to a lower toe region of body 1200 in thepresent embodiment, other embodiments may comprise a receptacle at otherregions of body 1200, such as at or proximate to an upper toe region, ahosel region, a heel region, a backside region, an upper-half region,and/or at a lower-half region of body 1200. Because multi-density weight1100 couples to receptacle 2210, the location of receptacle 2210 at body1200 can be decided based on intended characteristics for club 1,including a desired distribution of mass for club 1 and/or to affectlaunch angle, hook, or draw performance of club 1.

Multi-density weight 1100 comprises a first weight component 1110 and asecond weight component 1120 in the present example, where the firstweight component 1110 comprises inner portion 2113 and periphery 1112around inner portion 2113, and where the second weight component 1120 issecured along a cavity of the inner portion of the first weightcomponent 1110. In at least some embodiments, a density of the secondweight component 1120 differs from a density of the first weightcomponent 1110. For example, in the present embodiment, the density ofthe second weight component 1120 is greater than the density of thefirst weight component 1110. In addition, the densities of the firstweight component 1110 and/or the second weight component 1120 can begreater than a density of body 1200. Such relationships between thedensities of the first weight component 1110, the second weightcomponent 1120, and/or body 1200 can be tailored to adjust or fine tunedifferent characteristics of club 11. For example, the greater thedensity of the second weight component 1120 is relative to the densitiesof the first weight component 1110 and/or body 1200, the greater effectmultiple-density weight 1100 can have in repositioning or affecting acenter of gravity of club 11. In the same or a different example, wherethe density of the first weight component 1110 is between the densitiesof the second weight component 1120 and body 1200, club 11 may exhibit amore gradual and/or less abrupt transition from a portion of lowerdensity to a portion of higher density. In the same or a differentexample, such relative densities and transitions between densities canbe used to improve a “feel” of club 11. In different embodiments, thedensity of the second weight component 1120 can be greater than thedensity of the first weight component 1110, and both the first weightcomponent 1110 and the second weight component 1120 can have densitiesgreater than the density of body 1200.

In some examples, the first weight component 1110 may conform to a shapeor contour of a surface section one or more of the heel, upper toe,lower toe, hosel, heel, backside, upper-half, and/or lower-half regionsof body 1200, thus permitting the second weight component 1120 to alsoconform and/or extend across the surface section. In the same ordifferent examples, the first weight component 1110 can extend acrossthe surface section, and the second weight component 1120 can be locatedproximate to an end of the surface section. In some embodiments, topsurfaces of the first weight component 1110 and the second weightcomponent 1120 face towards an exterior of golf club head 11 whenmulti-density weight 1100 couples to receptacle 2210 of body 1200, asillustrated in FIG. 1. In different embodiments, the top surface offirst weight component 1110 and the second weight component 1120 canface towards an interior of golf club head 11 when multi-density height1100 couples to receptacle 2210 of body 1200. In the same or a differentembodiment, the perimeter of at least one of the first weight component1110 and/or the second weight component 1120 is non-circular such as toconform to the shape of the surface section.

In the present example, the materials of body 1200, the first weightcomponent 1110, and the second weight component 1120 can differ fromeach other. For example, in some embodiments, body 1200 can comprise ametallic material or alloy such as stainless steel, carbon steel, orother types of steel. In the same or other embodiments, the material ofbody 1200 can comprise a density with a specific gravity of, forexample, approximately 7.5 to approximately 8.5. In other embodiments,the material of the body 1200 can have a density within the range of 5-7g/cm³, 6-8 g/cm³, 7-9 g/cm³, or 8-10 g/cm³. For example, the material ofthe body 1200 can have a density of less than 10 g/cm³, less than 9g/cm³, less than 8 g/cm³, less than 7 g/cm³, less than 6 g/cm³, or lessthan 5 g/cm³.

In the same or a different embodiment, the first weight component 1110can comprise a material such as a metallic alloy comprising a tungstenalloy, a tungsten-nickel alloy, and/or a copper alloy. In manyembodiments, the first weight component 1100 can comprise a tungstenalloy wherein the composition comprises less than 85% tungsten. In otherembodiments, wherein the first weight component 1100 comprises atungsten alloy the composition can include less than 95, 93, 91, 89, 87,85, 83, 81, 79, 75, or 70% tungsten. In some embodiments, wherein thefirst weight component 1110 comprises a tungsten-nickel alloy, thetungsten-nickel alloy can include a composition having at least 5%nickel. In other embodiments, the tungsten-nickel alloy can comprise atleast 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, or 30% nickel. Forming thefirst weight component 1100 from a tungsten alloy, tungsten-nickelalloy, or a copper alloy allows the first weight component 1100 to havebonding capabilities with both the lower density material of the body1200 and the higher density material of the second weight component1120. There can be examples where the material of the first weightcomponent 1110 can comprise a density with a specific gravity of, forexample, approximately 8 to approximately 11. In some embodiments, thematerial of the first weight component 1110 can have a density withinthe range of 7-9 g/cm³, 8-10 g/cm³, 9-11 g/cm³, 10-12 g/cm³, 11-13g/cm³, 12-14 g/cm³, or 13-15 g/cm³. For example the density of the firstweight component 1110 can be less than 15 g/cm³, less than 14 g/cm³,less than 13 g/cm³, less than 12 g/cm³, less than 11 g/cm³, less than 10g/cm³, less than 9 g/cm³, less than 8 g/cm³, or less than 7 g/cm³.

In the same or a different embodiment, the second weight component 1120can comprise a heavier material, such as a tungsten material, a brassmaterial, a lead material, and/or alloys thereof, and can have a densitygreater than the density of the first weight component 1110, with aspecific gravity of, for example, approximately 14 to approximately 20.In some embodiments, the material of the second weight component 1120can have a density within the range of 9-12 g/cm³, 10-13 g/cm³, 11-14g/cm³, 12-15 g/cm³, 13-16 g/cm³, 14-17 g/cm³, or 15-18 g/cm³, 16-19g/cm³, 17-20 g/cm³, or 18-21 g/cm³. For example, the material of thesecond weight component 1120 can have a density greater than 9 g/cm³,greater than 10 g/cm³, greater than 11 g/cm³, 12 g/cm³, 13 g/cm³,greater than 14 g/cm³, greater than 15 g/cm³, greater than 16 g/cm³,greater than 17 g/cm³, greater than 18 g/cm³, greater than 19 g/cm³,greater than 20 g/cm³, or greater than 21 g/cm³. In embodiments whereinthe material has a density of greater than 9 g/cm³, the material can betungsten, molybdenum, palladium, uranium, silver, gold, osmium, iridiumor any other metal comprising a density greater than 9 g/cm³.

In the same or other examples, a material of multi-density weight 1100may also impart enhanced vibrational characteristics for club head 11.For instance, where a material of multi-density weight 1100, such as thematerial of the first weight component 1110, comprises a modulus ofelasticity lower than that of a material of body 1200 of club head 11,improved impact feel may be achieved because the modulus of elasticityplays a large role in determining the mechanical vibration of the clubhead. In one example, the material of the first weight component 1110comprises a tungsten-nickel alloy having a modulus of elasticity ofapproximately 19,500 thousand pounds per square inch (Kpsi) or 134,400MegaPascals, while the material of body 1200 can comprise a steelmaterial having a larger modulus of elasticity of approximately 23,000Kpsi or 160,000 MegaPascals.

There can be embodiments where the material of the second weightcomponent 1120 can comprise characteristics that make it unsuitableand/or more difficult to properly bond with the material of body 1200.For instance, the material of the second weight component 1120 caninherently comprise a weld-averse characteristic that can compromise thestrength or durability of weld bonds between the second weight component1120 and other materials such as the material of body 1200. As anexample, if the material of the second weight component 1120 comprisestungsten, while the material of body 1200 comprises steel, then thesecond weight component 1120 could comprise a melting temperature ofapproximately 6150 degrees Fahrenheit, while body 1200 could comprise amelting temperature of approximately 2750 degrees Fahrenheit. Such largedifferences in melting temperatures and/or other physicalcharacteristics may lead to undue deformation or liquefying of thematerial of body 1200 around a weld between body 1200 and the secondweight component 1120, to such an extent that the original shape orcontour of perimeter 1111 may not be maintained. In such examples, theweld-averse characteristic of the material of the second weightcomponent 1120 relative to the material of body 1200 can comprise apropensity for deformation, brittleness, and/or cracking during or afterweld-bonding.

As seen in FIG. 2, receptacle 2210 at body surface 1220 comprisesreceptacle base 2222 circumscribed by receptacle wall 2211. Receptaclewall 2211 also circumscribes a cavity over receptacle base 2222, wherethe cavity of receptacle 2210 is configured to at least partiallyaccommodate weight 1100, and where receptacle wall 2211 is configured tosecure perimeter 1111 of multi-density weight 1100.

In the present example, the first weight component 1110 comprises base2114 and wall 2115 circumscribing inner portion 2113 over base 2114. Asseen in FIGS. 2 and 4, wall 2115 can comprise an inner wall of periphery1112 of the first weight component 1110. In addition, an outermostperimeter of periphery 1112 of the first weight component 1110 cancomprise perimeter 1111 of multi-density weight 1100. Furthermore, inthe present example, bottom 4117 (FIG. 4) of multi-density weight 1100comprises a bottom of the first weight component 1110, and is abuttedagainst receptacle base 2222 when multi-density weight 1100 couples toreceptacle 2210.

The embodiment of FIGS. 1-4 also shows that perimeter 1121 of the secondweight component 1120 can be secured at least partially along innerportion 2113 and/or periphery 1112 of the first weight component 1110.In the present example, bottom 4127 of the second weight component 1120can also be abutted against base 2114 of the first weight component 1110when the second weight component 1120 is secured at the inner portion ofthe first weight component 1110.

In the present and other examples, considering the weld-averse traits ofthe second weight component 1120, a bonding mechanism comprising atleast one of a swedged bond, an epoxy bond, a sintered bond, and/or ashrink-fit bond can be used to secure perimeter 1121 and/or bottom 4127of the second weight component 1120 to inner portion 2113, perimeter1112, and/or base 2114 of the first weight component 1110. In otherembodiments, the first weight component 1110 and the second weightcomponent 1120 can be formed integrally with each other. For example,the multi-density weight 1100, including the first weight component 1110and the second weight component 1120, can be formed using an additivemanufacturing process also known as 3D printing. The additivemanufacturing process can involve simultaneously printing both the firstweight component 1110 and the second weight component 1120 to form themulti-density weight 1100. In the same or a different example, perimeter1111 of multi-density weight 1100 can be secured along receptacle wall2211 via at least one of a weld bond, a brazed bond, or a compressionring. In the latter case, the compression ring could be compressedbetween receptacle wall 2211 and perimeter 1111.

In the case of a weld bond, there may be several approaches for weldbonding. Skipping ahead in the figures, FIG. 20 illustrates across-sectional close-up view of weight 1100 secured to receptacle 2210of body 1200 via weld bond 20500. In the example of FIG. 20, weld gap20510 can be allotted between receptacle wall 2211 and perimeter 1111,such as to permit insertion or seepage of welding material 20520therebetween. Such weld gap 20510 may be as narrow as approximately 3millimeters in some examples. Narrower weld gaps may be achieved,sometimes at a trade-off with final surface and/or cosmetic finish. Inthe same or other examples, wall thickness 20112 of the first weightcomponent 1110, between perimeter 1111 and wall 2211, may be at least asthick as the weld gap to support heat dissipation and reduce permanentdeformation during the welding process.

In other embodiments, a weld bond may be used without requiring a weldgap. FIG. 21 shows a cross-sectional view of weight 21100 secured toreceptacle 21210 of club head body surface 21220 without the use of aweld gap. Weight 2100 can be a multi-density weight having weightcomponents 21110 and 21120, which can be similar to the first weightcomponent 1110 and the second weight component 1120, respectively inFIGS. 1-4. The present example comprises ridge 21150 along a topperimeter of weight 21100, and ridge 21215 along a top perimeter ofreceptacle 21210. The embodiment of FIG. 21 can dispense with the needfor a weld gap by relying instead on welding material 21520 forming weldbond 21500 at a junction between ridges 21150 and 21215. In the presentexample, ridge 21150 of weight 21100 is located along a top perimeter ofweight 21100, while ridge 21215 is located along a top perimeter ofreceptacle 21210. There may be examples, however, where ridge 21150 isnot continuous along the top perimeter of weight 2100, and/or whereridge 21215 is not continuous along the top perimeter of receptacle21210. Other embodiments may dispense with one of ridges 21150 or 21215.As an example, ridge 21150 may be directly bonded to body surface 21220with welding material 21520 if ridge 21215 were absent from the topperimeter of receptacle 21210. In another example, ridge 21215 may bedirectly bonded to weight 21100 with welding material 21520 if ridge21150 were absent from the top perimeter of weight 21100. Although theapplication of welding material 21520 may leave a rough or protrudedsalient at the interface between weight 21100 and club head body surface21220, such salient may be removed or otherwise blended in via asubsequent grinding, polishing, or other machining process if desired.There can be embodiments where one or more of ridges 21150 and/or 21215may be referred to as a bead, and/or where the shape of thereof differsfrom that illustrated in FIG. 21. If desired, there can also beembodiments where a weld gap can be used in combination with ridges21150 and/or 21215. There can also be examples where ridges can be usedto secure other portions of weight 21100. For example, weight components21120 and 21110 can be secured together using ridges similar to ridges21215 and/or 21150 as described above with respect to weight 21100 andbody surface 21220.

Backtracking through the figures, FIG. 5 illustrates a front perspectiveexploded view of club 50 having body 1200 and multi-density weight 5100.FIG. 6 presents a top view of multi-density weight 5100. FIG. 7 shows across sectional view of multi-density weight 1100 along a line 6-6 ofFIG. 6. Club head 50 is similar to club head 10 (FIGS. 1-4), comprisingmulti-density weight 5100 similar to multi-density weight 1100 (FIGS.1-4), but differing in that the first weight component 5110 ofmulti-density weight 5100 comprises no base similar to base 2114 of thefirst weight component 1110 (FIG. 2). Multi-density weight 5100 alsocomprises the second weight component 5120 and, because the first weightcomponent 5110 comprises no base 2114 (FIG. 2), the second weightcomponent 5120 can reach bottom 7117 of multi-density weight 5100 whensecured at inner portion 5113 of the first weight component 5110. In thesame or a different embodiment, the bottom of the second weightcomponent 5120 can contact base 2114 of receptacle 2210 whenmulti-density weight 5100 is secured to body 1200. In the same or adifferent embodiment, because the first weight component 5110 comprisesno base 2114 (FIG. 2), the bonding mechanism between the first weightcomponent 5110 and the second weight component 5120 is more focused onsecuring perimeter 5121 of the second weight component 5120 at leastpartially along wall 2115 of the second weight component 5120.

FIG. 8 presents a top view of multi-density weight 8100. FIG. 9 shows across sectional view of multi-density weight 8100 along a line 8-8 ofFIG. 8 Multi-density weight 8100 is similar to multi-density weights1100 (FIGS. 1-4) and 5100 (FIGS. 5-7), but comprises a first weightcomponent 8110, a second weight component 8120, and a third weightcomponent 8130, rather than only two weight components. There can beother implementations where multi-density weight 8100 could compriseabutted bases and bottoms of the first weight component 8110, the secondweight component 8120, and/or the third weight component 8130. Forexample, a bottom of the second weight component 8120 could be abuttedagainst a base of the third weight component 8130. In the same oranother example, a bottom of the third weight component 8130 can beabutted against a base of the first weight component 8110. In anotherexample, the bottoms of both the second weight component 8120 and thethird weight component 8130 can be abutted against the base of the firstweight component 8110. Other combinations and/or permutations aresimilarly possible.

In the present example, multi-density weight 8100 also comprises a shapedifferent than the shape of multi-density weights 1100 or 5100. As aresult, multi-density weight could be coupled at another receptacledifferent than receptacle 2210 (FIG. 2), such as at receptacle 1210(FIG. 1), at another region of body 1200, or to another club differentthan club 1 (FIGS. 1-2).

The first weight component 8110, the second weight component 8120, andthe third weight component 8130 comprise materials different from eachother, in the present embodiment, and could be arranged, for example, togradually transition from least dense to most dense, or vice versa. Inthe same or a different example, the second weight component 8120 cancomprise weld-averse traits similar to those of the second weightcomponent 1120 (FIGS. 1-4), and could be secured using one of thebonding mechanisms described above with respect to for the second weightcomponent 1120. The first weight component 8110 can comprise a materialthat is suitable for welding in the present example, and could besecured using one of the mechanisms described above for first weightcomponent 1110 (FIGS. 1-4). In some examples, the third weight component8130 could also comprise some of the weld-averse traits of the secondweight component 8120.

B. Kidney-Bean Shaped Multi-Density Weight with Second Weight ComponentEmbedded within the First Weight Component

FIG. 33 illustrates an embodiment of a club head body 1300 having areceptacle 3210 that can be capable of receiving a multi-density weight3100 and 4100 (FIGS. 34-37). FIG. 34 illustrates a cross-sectional viewof the club head body 1300 of FIG. 33 along a cross-sectional line35-35. The club head body 1300 can comprise a heel region 3140, a toeregion 3141 opposite the heel region 3140, a sole region 3142, and arear region 3143. As illustrated in FIG. 33 and FIG. 34, the club headbody 1300 can comprise a top wall 3212, a bottom wall 3213, a toe sidewall 3214, a heel side wall 3215, and a receptacle base 3210 positionedwithin an interior surface of the club head body 1300. The top wall3212, the bottom wall 3213, the toe side wall 3214, and the heel sidewall 3215, the receptacle base 3222 together form the receptacle 3210.In the illustrated embodiment, the receptacle 3210 can extend inward orcut into the rear region 3143 of the club head body 1300. The top wall3212, the bottom wall 3213, the toe side wall 3214, and the heel sidewall 3215, and a receptacle base 3222 can be configured to secure themulti-density weight 3100 and 4100 within the club head body 1300. Thereceptacle 3210 can form a portion of the rear region 3143 of the clubhead body 1300. In many embodiments, the receptacle 3210 can comprise 5to 100% of the rear region 3143 of the club head body 1300. In someembodiments, the receptacle 3210 can comprise 5 to 25%, 25 to 50%, 50 to75%, or 75 to 100% of the rear region 3143 of the club head body 1300.For example, the receptacle 3210 can comprise 5%, 10%, 15%, 20%, 25%,30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 85%, 90%, 95%, or 100% ofthe rear region 3143 of the club head body 1300. Further, in manyembodiments, the bottom wall 3213 of the receptacle 3210 can have acurvature that follows the contour of the toe region 3141 of the clubhead body 1300. In other embodiments, the receptacle 3210 can have acircular, a triangular, a rectangular, a trapezoidal, a ovular, apolygonal, a kidney-bean, a peanut, or any other suitable shape contour.In the exemplary embodiment, the top wall 3212, the bottom wall 3213,the toe side wall 3214, and the heel side wall 3215 of the receptacle3210 can form a general kidney-bean shape.

FIG. 35 illustrates a surface of the multi-density weight 3100 that cancouple to the receptacle base 3222 of the club head body 1300. Themulti-density weight 3100 illustrated in FIGS. 34 and 35 is similar tothe multi-density weight 1100 displayed in FIGS. 3 and 4, except it hasa general kidney-bean shape. In many embodiments, the multi-densityweight 3100 can follow the contour of the toe region 3141 to match thegeneral shape of the toe region 3141 of the club head body 1300. In manyembodiments, the multi-density weight 3100 can comprise a first weightcomponent 3110 and a second weight component 3120. In many embodiments,the multi-density weight 3100 can include a top surface 3113 comprisingthe first weight component 3110, a base 3114 comprising a portion of thefirst weight component 3110 and a portion of the second weight component3120, a top wall 3116, a bottom wall 3117, a toe side wall 3118, and aheel side wall 3119. In many embodiments, the top wall 3116, the bottomwall 3117, the toe side wall 3118, and the heel side wall 3119 cancomprise the first weight component 3110.

When the multi-density weight 3100 is received within the receptacle3210, the top wall 3116 can be configured to couple or abut with the topwall 3212 of the receptacle 3210, the bottom wall 3117 can be configuredto couple or abut with the bottom wall 3213 of the receptacle 3210, thetoe side wall 3118 can be configured to couple or abut with the toe sidewall 3214 of the receptacle 3210, and the heel side wall 3119 can beconfigured to couple or abut with the heel side wall 3215 of thereceptacle 3210. Further, in many embodiments, the multi-density weight3100 can be inserted in the receptacle 3210 such that the top surface3113 of the multi-density weight 3100, illustrated in FIG. 34, can beviewed from the exterior of the club head body 1300, while the base 3114of the multi-density weight 3100, illustrated in FIG. 35, can be coupledor abutted against the receptacle base 3222 of the club head body 1300.In the illustrated embodiment, the multi-density weight 3100 can beshaped and sized to entirely fill the receptacle 3210. In otherembodiments, the multi-density weight 3100 can be shaped and sized topartially fill the receptacle 3210. The multi-density weight 3100 whenreceived within the receptacle 3210 can comprise 5 to 100% of the rearregion 3143 of the club head body 1300. In some embodiments, themulti-density weight 3100 can comprise 5 to 25%, 25 to 50%, 50 to 75%,or 75% to 100% of the rear region 3143 of the club head body 1300. Forexample, the multi-density weight 3100 can comprise 5%, 10%, 15%, 20%,25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 85%, 90%, 95%, or 100%of the rear region 3143 of the club head body 1300.

C. Kidney-Bean Shaped Multi-Density Weight with Second Weight ComponentAdjacent to the First Weight Component

As illustrated in FIG. 36, a multi-density weight 4100 can be configuredto couple with the receptacle 3210. In many embodiments, themulti-density weight 4100 can comprise a first weight component 4110 anda second weight component 4120. The multi-density weight 4100 can besimilar to multi-density weight 1100 and 3100, except the first weightcomponent 4110 does not have to completely bound the second weightcomponent 4120. In the exemplary embodiment, the first weight component4110 and the second weight component 4120 can be configured to couple orabut together with one surface. The second weight component 4120 doesnot have to be embedded within the first component 4110. Themulti-density weight 4100 can comprise a top surface 4114 comprising thefirst weight component 4110, a base 4113 comprising the second weightcomponent 4120, a top wall 4116, a bottom wall 4117, a toe side wall4118, and a heel side wall 4119. In many embodiments, the top wall 4116,the bottom wall 4117, the toe side wall 4118, and the heel side wall4119 can comprise the first weight component 4110 and the second weightcomponent 4120.

The multi-density weight 4100 can be formed using a similar method asillustrated in FIG. 11 to form the multi-density weight illustrated inFIGS. 12-13, except that, as discussed above, the first weight component4110 is only sintered to a single surface of second weight component4120. In other embodiments, the first weight component 4110 can becoupled via a brazed bond or a weld bond to a single surface of thesecond weight component 4120. The multi-density weight 4100 can beinserted or swedged into the receptacle 3210, such that the secondweight component 4120 is abutted against the receptacle base 3222.

When the multi-density weight 4100 is received within the receptacle3210, the top wall 4116 can be configured to couple or abut with the topwall 3212 of the receptacle 3210, the bottom wall 4117 can be configuredto couple or abut with the bottom wall 3213 of the receptacle 3210, thetoe side wall 4118 can be configured to couple or abut with the toe sidewall 3214 of the receptacle 3210, and the heel side wall 4119 can beconfigured to couple or abut with the heel side wall 3215 of thereceptacle 3210. Further, in many embodiments, the multi-density weight4100 can be inserted to the receptacle 3210 such that the top surface4113 of the multi-density weight 4100, illustrated in FIGS. 36 and 37,can be viewed from the exterior of the club head 1300, while the base4114 of the multi-density weight 4100 can be coupled or abutted againstthe receptacle base 3222. In the illustrated embodiment, themulti-density weight 4100 can be shaped and sized to entirely fill thereceptacle 3210. In other embodiments, the multi-density weight 4100 canbe shaped and sized to partially fill the receptacle 3210. Themulti-density weight 4100 when received within the receptacle 3210 cancomprise 5 to 100% of the rear region 3143 of the club head body 1300.In some embodiments, the multi-density weight 4100 can comprise 5 to25%, 25 to 50%, 50 to 75%, or 75% to 100% of the rear region 3143 of theclub head body 1300. For example, the multi-density weight 4100 cancomprise 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%,70%, 85%, 90%, 95%, or 100% of the rear region 3143 of the club headbody 1300.

In many embodiments, the top wall 4116, the bottom wall 4117, the toeside wall 4118, and the heel side wall 4119 can be configured to couplewith the top wall 3212 of the receptacle 3210, the bottom wall 3213 ofthe receptacle 3210, the toe side wall 3214 of the receptacle 3210, andthe heel side wall 3215 respectively, such that the first weightcomponent 4110 can extend partially outward from the receptacle 3210 ofthe club head body 1300. In some embodiments, the multi-density weight4100 can be secured to the receptacle 3210 by swedging similar to themulti-density weight 14100 illustrated in FIG. 14. In other embodiments,the multi-density weight 4100 can be secured to the receptacle 3210 byswedging and can include barbing elements similar to the multi-densityweight 15100 illustrated in FIG. 15. In other embodiments, themulti-density weight 4100 can be secured to the receptacle 3210 by usingcompression elements similar to the multi density weight 16100 of FIGS.16 and 17. In other embodiments, the first weight component 4110 can bewelded to the top wall 3212, the bottom wall 3213, the toe side wall3214, and the heel side wall 3215 of the receptacle 3210 similar to themulti-density weight 1100 and 21100 of FIGS. 20 and 21. Once themulti-density weight 4100 has been secured to the receptacle 3210, theportion of the first weight component 4110 extending partially outwardfrom the club head body 1300 can be removed (eg. by polishing) such thatthe multi-density weight 4100 follows the contour of the surface of theclub head body 1300.

D. Multi-Density Weight Forming more of the Rear Region and Sole Regionof Golf Club Head Body

FIG. 38 and FIG. 39 illustrates a club head body 1400 having areceptacle 6210 that can be capable of receiving a multi-density weight6100. The multi-density weight 6100 can be similar to the multi-densityweight 1100, 3100, and 4100 described above. The club head body 1400 cancomprise a heel region 6140, a toe region 6141 opposite the heel region6140, a sole region 6142, and a rear region 6143. In many embodiments,the club head body 1400 can comprise a receptacle base 6222, areceptacle heel side wall 6214, and a receptacle top wall 6211. Thereceptacle base 6222, the receptacle heel side wall 6214, and thereceptacle top wall 6211 of the club head body 1400 together form thereceptacle 6210. The receptacle base 6222, the receptacle heel side wall6214, and the receptacle top wall 6211 can be configured to secure themulti-density weight 6100 within the club head body 1400.

In many embodiments, the receptacle 6210 can comprise a portion of therear region 6143, a portion of the toe region 6141, and/or a portion ofthe sole region 6142 of the club head body 1400. In many embodiments,the receptacle 6210 can comprise 5 to 100% of the rear region 3143 ofthe club head body 1400. In some embodiments, the receptacle 6210 cancomprise 5 to 25%, 25 to 50%, 50 to 75%, or 75% to 100% of the rearregion 3143 of the club head body 1400. For example, the receptacle 6210can comprise 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%,65%, 70%, 85%, 90%, 95%, or 100% of the rear region 3143 of the clubhead body 1400.

In many embodiments, the receptacle 6210 can comprise 5 to 100% of thetoe region 6141 of the club head body 1400. In some embodiments, thereceptacle 6210 can comprise 5 to 25%, 25 to 50%, 50 to 75%, or 75% to100% of the toe region 6141 of the club head body 1400. For example, thereceptacle 6210 can comprise 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%,50%, 55%, 60%, 65%, 70%, 85%, 90%, 95%, or 100% of the toe region 6141of the club head body 1400.

In many embodiments, the receptacle 6210 can comprise 5 to 100% of thesole region 6142 of the club head body 1400. In some embodiments, thereceptacle 6210 can comprise 5 to 25%, 25 to 50%, 50 to 75%, or 75% to100% of the sole region 6142 of the club head body 1400. For example,the receptacle 6210 can comprise 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%,45%, 50%, 55%, 60%, 65%, 70%, 85%, 90%, 95%, or 100% of the sole region6142 of the club head body 1400.

In many embodiments, the receptacle 6210 can follow the contour of thetoe region 6141, the sole region 6142, and the rear region 6143. Thereceptacle 6210 can form more of the rear region 6143 and the soleregion 6142 than the toe region 6141. In other embodiments, thereceptacle 6210 can be void of the receptacle heel side wall 6214 and/orthe receptacle top wall 6211 and comprise solely the receptacle base6222. In these embodiments, the receptacle 6210 can follow the contourof the toe region 6141, the heel region 6140, the sole region 6142, andthe rear region 6143. In these embodiments, the receptacle base 6222extends the entire length of the club head body 1400 in the heel to toedirection.

FIG. 39 illustrates a cross-sectional view taken along line 39-39 ofFIG. 39 showing the club head body 1400 comprising a multi-densityweight 6100 that can be configured to coupled with receptacle 6210. Inmany embodiments, the multi-density weight 6100 can comprise a firstweight component 6110 and a second weight component 6120. In manyembodiments, the multi-density weight 6100 can include a top surface6113, a base 6114, a top wall 6116, a sole wall 6117, a toe side wall6118, and a heel side wall 6119. In many embodiments, the base 6114, thetop wall 6116, the sole wall 6117, the toe side wall 6118, and the heelside wall 6119 can comprise the first weight component 6110. In otherembodiments, the base 6114 can comprise a portion of the first weightcomponent 6110 and the second weight component 6120.

When the multi-density weight 6100 is received within the receptacle6210, the base 6114 of the multi-density weight 6100 can be configuredto couple or abut with the receptacle base 6222, the top wall 6116 canbe configured to couple or abut with the receptacle top wall 6211 of thereceptacle 6210, the sole wall 6117 of the multi-density weight 6100 canbe configured to form a portion of the sole region 6142 of the club headbody 1400, the toe side wall 6118 of the multi-density weight 6100 canbe configured to form a portion of the toe region 6141 of the club headbody 1400, and the heel side wall 6119 can be configured to couple orabut with the heel side wall 6214 of the receptacle 6210. Further, inmany embodiments, the multi-density weight 6100 can be inserted in thereceptacle 6210 such that the top surface 6113 of the multi-densityweight 6100, illustrated in FIGS. 38 and 39, can be viewed from theexterior of the club head 1400, while the base 6114 of the multi-densityweight 6100 can be coupled or abutted against the receptacle base 6222.In the illustrated embodiment, the multi-density weight 6100 can beshaped and sized to entirely fill the receptacle 6210. In otherembodiments, the multi-density weight 6100 can be shaped and sized topartially fill the receptacle 6210. The multi-density weight 6100 whenreceived within the receptacle 6210 can comprise 5 to 100% of the rearregion 6143 of the club head body 1300. In some embodiments, themulti-density weight 6100 can comprise 5 to 25%, 25 to 50%, 50 to 75%,or 75% to 100% of the rear region 6143 of the club head body 1400. Forexample, the multi-density weight 6100 can comprise 5%, 10%, 15%, 20%,25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 85%, 90%, 95%, or 100%of the rear region 6143 of the club head body 1400.

In many embodiments, the multi-density weight 6100 when received withinthe receptacle 6210 can comprise 5 to 100% of the toe region 6141 of theclub head body 1400. In some embodiments, the multi-density weight 6100can comprise 5 to 25%, 25 to 50%, 50 to 75%, or 75% to 100% of the toeregion 6141 of the club head body 1400. For example, the multi-densityweight 6100 can comprise 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%,50%, 55%, 60%, 65%, 70%, 85%, 90%, 95%, or 100% of the toe region 6141of the club head body 1400.

In many embodiments, the multi-density weight 6100 when received withinthe receptacle 6210 can comprise 5 to 100% of the sole region 6142 ofthe club head body 1400. In some embodiments, the multi-density weight6100 can comprise 5 to 25%, 25 to 50%, 50 to 75%, or 75% to 100% of thesole region 6142 of the club head body 1400. For example, themulti-density weight 6100 can comprise 5%, 10%, 15%, 20%, 25%, 30%, 35%,40%, 45%, 50%, 55%, 60%, 65%, 70%, 85%, 90%, 95%, or 100% of the soleregion 6142 of the club head body 1400.

The multi-density weight 6100 can be coupled to the receptacle 6210 by aweld bond or a brazed bond between the top wall 6116, the heel side wall6119, the base 6114 of the multi-density weight 6100 and the receptaclebase 6222, the receptacle top wall 6211, and the receptacle heel sidewall 6214 of the receptacle 6210. In some embodiments, the receptacle6210 can be void of a receptacle heel side wall 6214 and comprise solelya receptacle base 6222 (not shown). In these embodiments, themulti-density weight 6100 can comprise the entire rear region 6143 theclub head body 1400.

E. Multi-Density Weight Forming more of the Toe Region of the Golf ClubHead Body

FIG. 40 illustrates a club head body 1500 having a receptacle 7210 thatcan be configured to receive a multi-density weight 7100. The club headbody 1500 can comprise a heel region 7140, a toe region 7141, a soleregion 7142, and a rear region 7143. In many embodiments, the club headbody 1500 can comprise a receptacle side wall 7211 and a receptacle base6222. The receptacle base 7222 and the receptacle side wall 7211together form the receptacle 7210. The receptacle 7210 can comprise aportion of the rear region 7143, the toe region 7141, and the soleregion 7142 of the club head body 1500.

In many embodiments, the receptacle 7210 can comprise 5 to 50% of therear region 7143 of the club head body 1500. In some embodiments, thereceptacle 7210 can comprise 5 to 10%, 10 to 20%, 20 to 30%, 30 to 40%,or 40 to 50% of the rear region 7143 of the club head body 1500. Forexample, the receptacle 7210 can comprise 5%, 10%, 15%, 20%, 25%, 30%,35%, 40%, 45%, or 50% of the rear region 7143 of the club head body1500.

In many embodiments, the receptacle 7210 can comprise 5 to 50% of thetoe region 7141 of the club head body 1500. In some embodiments, thereceptacle 7210 can comprise 5 to 10%, 10 to 20%, 20 to 30%, 30 to 40%,or 40 to 50% of the toe region 7141 of the club head body 1500. Forexample, the receptacle 7210 can comprise 5%, 10%, 15%, 20%, 25%, 30%,35%, 40%, 45%, or 50% of the toe region 7141 of the club head body 1500.

In many embodiments, the receptacle 7210 can comprise 5 to 50% of thesole region 7142 of the club head body 1500. In some embodiments, thereceptacle 7210 can comprise 5 to 10%, 10 to 20%, 20 to 30%, 30 to 40%,or 40 to 50% of the sole region 7142 of the club head body 1500. Forexample, the receptacle 7210 can comprise 5%, 10%, 15%, 20%, 25%, 30%,35%, 40%, 45%, or 50% of the sole region 7142 of the club head body1500.

In many embodiments, the receptacle 7210 can form more of the toe region7141 than the rear region 7143 and/or the sole region 7142. Thereceptacle 7210 can follow the contour of the toe region 7141 to allowthe multi-density weight 7100 to be flush with the club head body 1500.In some embodiments, the receptacle 7210 can form more of the rearregion 7143 than the toe region 7141 and/or the sole region 7142. Insome embodiments, the receptacle 7210 can form more of the sole region7142 than the toe region 7141 and/or the rear region 7143.

FIG. 41 illustrates a cross-sectional view taken along line 42-42 ofFIG. 41 showing the multi-density weight 7100 that can be configured tocouple with the receptacle 7210. The multi-density weight 7100 can besimilar to the multi density weight 1100, 3100, 4100, 6100 except thatit can form more of the toe region 7141 of the club head body 1500. Inmany embodiments, the multi-density weight 7100 can comprise a firstweight component 7110 and a second weight component 7120. Themulti-density weight 7100 can include a top wall 7113, a bottom wall7114, a base 7115, and a top surface 7116. In the illustratedembodiment, the first weight component 7110 can bound the second weightcomponent 7120 along the top surface 7116 and the bottom wall 7114.

When the multi-density weight 7100 is received within the receptacle7210, the top wall 7113 of the multi-density weight 7100 can beconfigured to couple or abut against the receptacle side wall 7211 ofthe receptacle 7210, the base 7115 of the multi-density weight 7100 canbe configured to couple or abut against the receptacle base 7222 of thereceptacle 7210, the top surface 7116 can form a portion of the rearregion 7143, and the bottom wall 7114 of the multi-density weight 7100can form a portion of the sole region 7142 and a portion of the toeregion 7141. The multi-density weight 7100 can be coupled (eg. bywelding or brazing) to the receptacle 7210 between the edges of thefirst weight component 7110 and the receptacle side wall 7211 and/orreceptacle base 7222.

When the multi-density weight 7100 is received within the receptacle7210, the multi-density weight 7100 can comprise 5 to 50% of the rearregion 7143 of the club head body 1500. In some embodiments, themulti-density weight 7100 can comprise 5 to 10%, 10 to 20%, 20 to 30%,30 to 40%, or 40 to 50% of the rear region 7143 of the club head body1500. For example, the multi-density weight 7100 can comprise 5%, 10%,15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50% of the rear region 7143 of theclub head body 1500.

When the multi-density weight 7100 is received within the receptacle7210, the multi-density weight 7100 can comprise 5 to 50% of the toeregion 7141 of the club head body 1500. In some embodiments, themulti-density weight 7100 can comprise 5 to 10%, 10 to 20%, 20 to 30%,30 to 40%, or 40 to 50% of the toe region 7141 of the club head body1500. For example, the multi-density weight 7100 can comprise 5%, 10%,15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50% of the toe region 7141 of theclub head body 1500.

When the multi-density weight 7100 is received within the receptacle7210, the multi-density weight 7100 can comprise 5 to 50% of the soleregion 7142 of the club head body 1500. In some embodiments, themulti-density weight 7100 can comprise 5 to 10%, 10 to 20%, 20 to 30%,30 to 40%, or 40 to 50% of the sole region 7142 of the club head body1500. For example, the multi-density weight 7100 can comprise 5%, 10%,15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50% of the sole region 7142 of theclub head body 1500.

F. Multi-Density Weight Forming a Portion of the Sole Region and the ToeRegion of the Golf Club Head Body

FIG. 42 and FIG. 43 illustrate a club head body 1600 having a receptacle9210 that can be configured to receive a multi-density weight 9100. Theclub head body 1600 can comprise a heel region 9140, a toe region 9141,a sole region 9142, and a rear region 9143. The club head body 1600 cancomprise a receptacle front wall 9211, a receptacle back wall 9222, anda receptacle top wall 9223 between the receptacle front wall 9211 andthe receptacle back wall 9222. The receptacle front wall 9211, thereceptacle back wall 9222, and the receptacle top wall 9223 togetherform the receptacle 9210. The receptacle 9210 can comprise a portion ofthe sole region 9142 and a portion of the toe region 9141 of the clubhead 1600.

In many embodiments, the receptacle 9210 can comprise 5 to 50% of thetoe region 9141 of the club head body 1600. In some embodiments, thereceptacle 9210 can comprise 5 to 10%, 10 to 20%, 20 to 30%, 30 to 40%,or 40 to 50% of the toe region 9141 of the club head body 1600. Forexample, the receptacle 9210 can comprise 5%, 10%, 15%, 20%, 25%, 30%,35%, 40%, 45%, or 50% of the toe region 9141 of the club head body 1600.

In many embodiments, the receptacle 9210 can comprise 5 to 50% of thesole region 9142 of the club head body 1600. In some embodiments, thereceptacle 9210 can comprise 5 to 10%, 10 to 20%, 20 to 30%, 30 to 40%,or 40 to 50% of the sole region 9142 of the club head body 1600. Forexample, the receptacle 9210 can comprise 5%, 10%, 15%, 20%, 25%, 30%,35%, 40%, 45%, or 50% of the sole region 9142 of the club head body1600.

In many embodiments, the receptacle 9210 can follow the transitionbetween the sole region 9142 and the toe region 9141. The receptacle9210 generally has a rectangular shape that follows the contour of thesole region 9142 and the toe region 9141. In other embodiments, thereceptacle 9210 can have a circular, a triangular, a rectangular, atrapezoidal, a ovular, a polygonal, a kidney-bean, a peanut, or anyother suitable shape.

Turning to FIG. 43, a cross-sectional view taken along line 44-44 ofFIG. 42 illustrates the multi-density weight 9100 that can be configuredto couple with the receptacle 9210. The multi-density weight 9100 can besimilar to the multi-density weight 1100, 3100, 4100, 6100, 7100 exceptthat it can have a rectangular shape following the transition betweenthe sole region 9142 and the toe region 9141. In many embodiments, themulti-density weight 9100 can comprise a first weight component 9110 anda second weight component 9120. The multi-density weight 9100 caninclude a top surface 9113, a bottom surface 9114 opposite the topsurface 9113, a front surface 9115, and a back surface 9116 opposite thefront surface 9115. In the illustrated embodiment, the first weightcomponent 9110 can bound the second weight component 9120 along thebottom surface 9114.

When the multi-density weight 9100 is received within the receptacle9210, the top surface 9113 of the multi-density weight 9100 can beconfigured to couple or abut against the receptacle top wall 9223 of thereceptacle 9210, the bottom surface 9114 of the multi-density weight9100 can be configured to be form a portion of the sole region 9142 anda portion of the toe region 9141 of the club head body 1600, the frontsurface 9115 of the multi-density weight 9100 can be configured tocouple or abut against the receptacle front wall 9211 of the receptacle9210, the back surface 9116 of the multi-density weight 9100 can beconfigured to couple or abut against the receptacle back wall 9222 ofthe receptacle 9210. The multi-density weight 9100 can be coupled (eg.by welding, swedging, or brazing) to the receptacle 9210 between theedges of the first weight component 9110 and the receptacle front wall9211, the receptacle back wall 9222, and the receptacle top wall 9223.In some embodiments, the receptacle 9120 can be void of the receptacleback wall 9222. In these embodiments, the first weight component 9110and the second weight component 9120 can be exposed or form a portion ofthe rear region 9143 of club head body 1600.

When the multi-density weight 9100 is received within the receptacle9210, the multi-density weight 9100 can comprise 5 to 50% of the toeregion 9141 of the club head body 1600. In some embodiments, themulti-density weight 9100 can comprise 5 to 10%, 10 to 20%, 20 to 30%,30 to 40%, or 40 to 50% of the toe region 9141 of the club head body1600. For example, the multi-density weight 9100 can comprise 5%, 10%,15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50% of the toe region 9141 of theclub head body 1600.

When the multi-density weight 9100 is received within the receptacle9210, the multi-density weight 9100 can comprise 5 to 50% of the soleregion 9142 of the club head body 1600. In some embodiments, themulti-density weight 9100 can comprise 5 to 10%, 10 to 20%, 20 to 30%,30 to 40%, or 40 to 50% of the sole region 9142 of the club head body1600. For example, the multi-density weight 9100 can comprise 5%, 10%,15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50% of the sole region 9142 of theclub head body 1600.

G. Method of Forming a Multi-Density Weight with Multiple WeightComponents

Moving along, FIG. 10 illustrates a flowchart for a method 10000 ofmanufacturing a club in accordance with the present disclosure. In someembodiments, the club of method 10000 can be similar to club 1 (FIGS.1-2), or to club 5 (FIG. 5).

Block 10100 of method 10000 comprises providing a body of a club headfor the club of method 10000. In some embodiments, the body of the clubhead can be similar to body 1200 of club head 11 (FIG. 1, 2, 5). Inother embodiments, the body of the club head of method 10000 can relateto other types of clubs different than those corresponding to FIGS. 1-9.The body of the club head can comprise a body material such as steel insome examples, and can comprise a recess similar to receptacle 2210(FIG. 2, 5).

Block 10200 of method 10000 comprises providing a multi-density weight.The multi-density weight can be similar to one of multi-density weights1100 (FIGS. 1-4), 5100 (FIGS. 5-7), and/or 8100 (FIGS. 8-9). Block 10200can comprise several sub-blocks in some embodiments, as described below.

Sub-block 10210 of block 10200 comprises forming a first weight portionof the multi-density weight. In some embodiments, the first weightportion can be similar to weight components 1110 (FIGS. 1-4), 5110 (FIG.5-7), or 8110 (FIGS. 8-9). In the same or a different embodiment, thefirst weight portion can comprise a first material different than a bodymaterial of the body of block 10100, where the first material has afirst density. As an example, the first material can comprise atungsten-nickel alloy material. The first material of the first weightportion of sub-block 10210 also exhibits a pro-bond characteristicrelative to the body material of the body. In some embodiments, thepro-bond characteristic can enable proper welding of the first weightportion to the body of block 10100.

Sub-block 10220 of block 10200 comprises forming a second weight portionof the multi-density weight. In some embodiments, the second weightportion can be similar to weight components 1120 (FIGS. 1-4), 5120 (FIG.5-7), or 8120 (FIGS. 8-9). In the same or a different embodiment, thesecond weight portion can comprise a second material different than thebody material of the body or the first material of the first weightportion. The second material has a second density greater than the firstdensity of the first weight portion in at least some embodiments. Forexample, the second material can comprise a tungsten material. Thesecond material of the second weight portion of sub-block 10220 alsoexhibits an anti-bond characteristic relative to the body material ofthe body. In some embodiments, the anti-bond characteristic can besimilar to the weld-averse trait described above with respect to weightcomponent 1120.

In some embodiments, sub-block 10210 can comprise forming the firstweight portion to comprise an inner space and a periphery conforming toa perimeter of the multi-density weight, while sub-block 10220 cancomprise forming a perimeter of the second weight portion to nest in theinner space of the first weight portion. As an example, the periphery ofthe first weight portion can be similar to periphery 1112 as conformedto perimeter 1111 (FIGS. 1-7) for weights 1100 (FIGS. 1-4) and 5100(FIGS. 5-7). As also seen in the example of FIGS. 1-4, the perimeter ofthe second weight portion can be similar to perimeter 1121 of weightcomponent 1120, bounding weight component 1120 to nest in inner portion2113 of weight component 1110. A similar analogy can be made withrespect to perimeter 5121 bounding weight component 5120 to nest ininner portion 5113 of weight component 5110.

In examples similar to that of FIGS. 1-4, the inner space of the firstweight portion can be bounded by a tub surface, and the second weightportion can conform to the tub surface of the first weight portion. Insuch examples, the inner space can be similar to inner portion 2113(FIG. 2), as bounded by the tub surface formed by the combination ofbase 2114 and wall 2115, and the second weight portion conforms to thetub surface as shown for weight component 1120 coupled to inner portion2113 (FIGS. 2, 4).

Sub-block 10230 of block 10200 comprises bounding the second weightportion of block 10220 with the first weight portion of block 10210 toform the multi-density weight. In some examples, the first weightportion can bound the second weight portion as illustrated in FIGS. 3-4with respect to weight components 1110 and 1120. In other examples, thesecond first weight portion can bound the second weight portion asillustrated in FIGS. 6-7 with respect to weight components 5110 and5120.

Sub-block 10230 can be performed in one of several different ways. Inone example, the second weight portion can be bounded with the firstweight portion by bonding the second weight portion to the inner spaceof the first weight portion with an epoxy material. In the example ofFIGS. 1-4, the epoxy material can be located between base 2114 and abottom of weight component 1120, and between wall 2115 of weightcomponent 1110 and perimeter 1121 of weight component 1120.

Another way of performing sub-block 10230 can comprise swedging thesecond weight portion into the inner space of the first weight portion.In such embodiments, an inner wall defining the inner space of the firstweight portion can comprise a perimeter or other dimensions configuredto compress against the second weight portion. For instance, in theembodiment of FIG. 4, a perimeter of wall 2115 of weight portion 1110can be substantially equal to, or slightly less than, perimeter 1121 ofweight portion 1120. As a result, weight portion 1120 is held in placeby compressive forces when force-pressed into the inner space withinwall 2115 and thereby bounded by the weight portion 1110.

In another example of swedging, such as shown in FIG. 14, multi-densityweight 14100 can be similar to multi-density weight 1100 (FIGS. 1-4) andcan comprise weight element 14110 to couple with weight element 14120.Weight elements 14110 and 14120 can be similar to weight elements 1110and 1120, respectively, but bottom 14127 of weight element 14120 isslightly larger than opening 14116 of inner portion 14113 of weightelement 14110. As a result, when weight element 14120 is swedged intoinner portion 14113 of weight element 14110, at least one of bottom14127 or wall 14115 may at least temporarily elastically deform topermit bottom 14127 to enter inner portion 14113 through opening 14116.Once swedged into inner portion 14113, wall 14115 may compress aroundperimeter 14121 of weight element 14120 to maintain weight element 14120in place.

FIG. 15 shows another example of swedging, similar to the example ofFIGS. 4 and 14, but comprising weight elements 15110 and 15120. Weightelements 15110 and 15120 can be similar to weight elements 1110 and1120, respectively, but each comprise respective barbing elements 15119and 15129 configured to interlock with each other when weight element15120 is swedged into inner portion 15113 of weight element 15110 tomaintain weight element 15120 in place when wall 15115 of weight element15110 compresses around perimeter 15121 of weight element 15120. In someexamples, barbing elements 15119 and/or 15129 may interlock viacompression or crushing when weight portion 15120 is force-pressed intoinner space 15113 of weight portion 15110. Although in the presentexample barbing elements 15119 and 15129 are shown as respectivelycircumscribing perimeter 15121 and wall 15115, there can be otherembodiments without full circumscription. There can also be embodimentscomprising more than one set of barbing elements, and/or where thebarbing elements are located elsewhere, such as near the top or bottomof perimeter 15121 and wall 15115.

Continuing with other examples for sub-block 10230 in FIG. 10, anotherway of bounding the second weight portion with the first weight portioncan comprise sintering, such as shown in FIGS. 11-12. FIG. 11illustrates a flowchart of a method 11000 for sintering the secondweight portion of block 10220 at the inner space of the first weightportion of block 10210. FIG. 12 illustrates a cross section of mold12500 used to form weight portion 12110, where weight portion 12110 cancorrespond to the first weight portion of block 10210 (FIG. 10). FIG. 13illustrates a cross section of mold 12500 used to form weight portion13120, where weight portion 13120 can correspond to the second weightportion of block 10220.

Block 11100 of method 11000 comprises providing a first mold comprisinga first mold base circumscribed by a first mold wall. In some examples,the mold can be similar to mold 12500 of FIGS. 12-13.

Block 11200 of method 11000 comprises coating the first mold base withthe first material to form a first material base. In the example of FIG.12, the first material can correspond to base 12114 over mold base12520. In the same or a different example, the first material in block11200 can be similar to a material of weight component 1110 as describedabove. In the same or a different embodiment, the first material can bein powdered form when first placed over the mold base.

Block 11300 of method 11000 comprises coating the first mold wall withthe first material to form a first material wall circumscribing thefirst material base. In the example of FIG. 12, the first material wallcan correspond to wall 12115 bounded by mold wall 12510 andcircumscribing base 12114. In the same or a different embodiment, thefirst material can also be in powdered form when first placed within thebounds of mold wall 12510.

Block 11400 of method 11000 comprises forming the inner space of thefirst weight portion to be bounded by the first material base and thefirst material wall. In some examples, the inner space can correspond toinner space 12113, similar to inner portion 2113 of weight component1110 (FIG. 1). In the same or different examples, the inner space can beformed by shaping the powdered form of the first material to the desiredcontour for the inner portion.

Method 11000 also comprises block 11800, comprising placing a secondmaterial of the second weight portion into the inner space of the firstweight portion. In the example of FIG. 13, the second material cancorrespond to the material of weight portion 13120, which can be similarto weight component 1120 (FIGS. 1-4). In the same or a differentembodiment, the second material can be in powdered form when firstplaced into the inner space of the first weight. In some examples, thefirst material of the first weight portion can be at least partiallysintered before block 11800 is carried out.

Block 11900 of method 11000 comprises sintering the first and secondmaterials of the first and second weight portions together. Suchsintering can be performed at a suitable temperature and/or pressure toeffectively bond the first and second materials together.

In some examples, method 11000 can comprise blocks 11500-11700 betweenblocks 11400 and 11800. In such examples, block 11500 can compriseproviding a second mold, while block 11600 can comprise placing thesecond material of the second weight portion into the second mold. Thesecond material can be in powdered form when placed into the second moldin some examples. Block 11700 then comprises at least partiallysintering the second material in the second mold to shape the secondweight portion to correspond to the contour of the inner space of thefirst weight portion as formed in block 11400. Method 11000 can thencontinue in block 11800 as described above when the second weightportion is removed from the second mold and placed into the inner spaceof the first weight portion.

Returning to FIG. 10, in other embodiments, blocks 10210, 10220 and10230 can be combined. For example, the weight component 1110 and weightcomponent 1120 can be formed simultaneously using additivemanufacturing. Any suitable additive manufacturing process can be used,such as 3D printing, additive layer manufacturing, direct digitalmanufacturing, or rapid prototyping.

Referring again to FIG. 10, block 10300 of method 10000 comprisescoupling the multi-density weight of block 10200 to a region of the bodyof block 10100. In at least some embodiments, a perimeter of themulti-density weight can be secured to a wall of the recess of the bodydescribed in block 10100, where the wall can be similar to wall 2211 ofreceptacle 2210 (FIGS. 2, 5).

In some examples, block 10300 can be carried out by welding themulti-density weight to the region of the body. For example, in theembodiment of FIGS. 1-4, a weld may be formed to join weight component1110 to at least receptacle wall 2211 of body 2211. Block 10300 can alsobe carried out in some embodiments by brazing the multi-density weightto the region of the body. For example, in the embodiment of FIGS. 1-4,a brazed joint can be produced when capillary action between receptaclewall 2211 of body 1200 and perimeter 1111 of weight component 1110absorbs melted brazing material to secure multi-density weight 1100 toreceptacle 2211 of body 1200.

There can be examples where block 10300 of method 10000 is carried outby compressing a compression element between the multi-density weightand the region of the body. In such examples, block 10200 can furthercomprise providing the compression element coupled at least partiallyaround the perimeter of the multi-density weight, while block 10300 cancomprise expansively deforming the compression element between themulti-density weight and a wall of a recess at the region of the body.In the same or other examples, the compression element can comprise acompression ring. For instance, FIG. 16 shows an embodiment ofmulti-density weight 16100 being coupled with recess 16210 of body 16200of a club head, where multi-density weight 16100 is similar tomulti-density weight 1100 (FIGS. 1-4), but comprises compressionelements 16510 and 16520. FIG. 17 shows multi-density weight 16100 ascoupled with recess 16210 (FIG. 16). In the example of FIGS. 16-17,compression elements 16510 and 16520 comprise compression rings that atleast partially circumscribe perimeter 16111 of multi-density weight16100. When pressed into recess 16210, as shown in FIG. 17, compressionelements 16510 deform or bulge against wall 16211 and thereby securemulti-density weight 16100 at recess 16210. FIGS. 16-17 show compressionelements 16510 and 16520 coupling with respective grooves 16212 of wall16211, but there can be other embodiments where one or more compressionelements 16510 and/or 16520 compress against a wall similar to wall16211 but comprising no grooves. There can be embodiments with only onecompression element, rather than the two compression rings 16510 and16520 of multi-density weight 16100. As an example, some embodiments mayuse only compression ring 16520.

In other embodiments, the compression element can comprise one or moreprotrusions instead of a compression ring, where the one or moreprotrusions can be configured to buckle against the wall of the recesswhen the multi-density weight is pressed against the recess. Forexample, in some embodiments, the protrusion could protrude past a topsurface of the multi-density weight, and would bulge against the top rimof the recess when buckled. In another embodiment, the protrusion couldprotrude past a bottom surface of the multi-density weight, and wouldbulge against the bottom of the wall of the recess when buckled.

Block 10300 also can be carried out in accordance with FIGS. 18-19 insome embodiments. FIG. 18 shows multi-density weight 18100 being pressedby press 18500 into recess 18210 of body 18200 of a club head, whileFIG. 19 shows multi-density weight 18100 as coupled with recess 18210.Multi-density weight 18100 is similar to multi-density weight 1100(FIGS. 1-4), and recess 18210 is similar to recess 2210 (FIG. 2), butrecess 18210 differs by comprising lip 18212 at a rim of wall 18211 ofrecess 18210. As seen in FIGS. 18-19, as press 18500 pressesmulti-density weight 18100 into recess 18210, press 18500 folds, bends,or otherwise deforms lip 18212 over at least a portion of a top ofmulti-density weight 18100, thereby securing multi-density weight 18100within recess 18210. Although in the present example, the rim of wall18211 is completely circumscribed by lip 18212, there can be otherexamples where lip 18212 may circumscribe only a portion the rim of wall18211, and/or there may be other lips similar to lip 18212 at otherportions of the rim of wall 18211. In some examples, a 60-120 ton pressmay be used to press multi-density weight 18100 into recess 18210.

There can also be examples where one or more of blocks 10300 and/or10230 of method 10000 can be carried out by plating a portion of atleast one of the first or second weight portions. Some embodiments maycomprise plating at least part of an exterior of the second weightcomponent of block 10220, such that the plating material will be locatedbetween the second weight component and the first weight component whenblock 10230 is carried out to bound the second weight portion with thefirst weight portion. In the same or a different embodiment, at leastpart of an exterior of the first weight component of block 10210 can beplated such that the plating material will be located between the secondweight component and the first weight component when block 10230 iscarried out, and/or such that the plating material will be locatedbetween the multi-density weight and the region of the body when block10300 is carried out. In the same or different embodiments, the platingmaterial can deform when blocks 10230 and/or 10300 of method 10000 arecarried out, including situations where at least part of themulti-density weight is swedged.

In some examples, one or more of the different blocks of method 10000and/or 11000 can be combined into a single block or performedsimultaneously, and/or the sequence of such blocks can be changed. Forexample, blocks 10220 and 10230 can be combined into a single block insome embodiments, such as when blocks 11800-11900 of method 11000 arecarried out. In the same or other examples, some of the blocks of method10000 and/or method 11000 can be subdivided into several sub-blocks. Forexample, providing the body of the club head in block 10100 may comprisefurther sub-blocks such as forming a strike face of the golf club head.There can also be examples where method 10000 and/or 11000 can comprisefurther or different blocks. As an example, method 10000 can alsocomprise providing a golf club shaft to attach to the club head of block10100. Method 10000 and/or 11000 can also comprise optional blocks insome implementations. For example, blocks 11500, 11600, and 11700 can beoptional in some examples. Other variations can be implemented formethod 10000 and/or method 11000 without departing from the scope of thepresent disclosure.

Although, in the figures above, head body is illustrated as an iron-typegolf club head body, the disclosure herein is not limited in thatrespect. For example, the head body could comprise a driver-type headbody, a fairway wood-type head body, a hybrid-type head body, aniron-type or wedge-type head body, or a putter-type head body in someimplementations.

II) Multi-Density Weight Comprising a Shell Portion and a Weight Member

In one embodiment, a golf club head can comprise a head body comprisingan interior cavity and a body opening coupled to the interior cavity, ashell portion configured to couple to the body opening, a bracketcoupled to the shell portion, and a weight member coupled to thebracket. The weight member can be denser and harder than the head body,denser and harder than the bracket, and/or denser and harder than theshell portion. The bracket and the weight member can be configured to befully contained within the interior cavity. The bracket can comprise amalleable lip configured to clamp the weight member in place at theshell portion. The bracket and the shell portion can comprise a singlepiece of the same material. A weld bead can couple the shell portion tothe body opening throughout a total thickness of a perimeter of theshell portion. The shell portion can comprise at least a portion of asole of the golf club head, and can be located closer to a front portionof the golf club head than a rear portion of the golf club head. Theweight member can comprise a weight thickness of (a) less thanapproximately 6.4 mm if the golf club head comprises a fairway-wood-typehead, (b) less than approximately 5.5 mm if the golf club head comprisesa driver-type head, or (c) less than approximately 8.5 mm if the golfclub head comprises a hybrid-type head. The weight member can alsocomprise a weight volume of (a) less than approximately 15 cc if thegolf club head comprises the fairway-wood-type head, (b) less thanapproximately 12 cc if the golf club head comprises the a driver-typehead, or (c) less than approximately 20 cc if the golf club headcomprises the hybrid-type head. A specific gravity of the weight membercan be of approximately 18 to approximately 20. A material of the weightmember can be at least one of a tungsten material, a nickel material, acadmium material, a copper material, or a metal-infused plasticmaterial. The shell portion can comprise at least one of a steelmaterial or a titanium material. The weight member can adjust a centerof gravity of the golf club head (a) at least 0.38 mm towards the soleif the golf club head comprises the fairway-wood-type head, (b) at least0.25 mm towards the sole if the golf club head comprises the driver-typehead, or (c) at least 0.4 mm towards the sole if the golf club headcomprises the hybrid-type head.

In one embodiment, a golf club head can comprise a head body comprisingan interior cavity and a body opening coupled to the interior cavity, ashell portion configured to couple to the body opening, a bracketcoupled to the shell portion, and a weight member coupled to thebracket. The weight member can be denser and harder than the bracket,and/or denser and harder than the shell portion. The bracket and theweight member can be configured to be fully contained within theinterior cavity. The bracket can comprise a malleable lip configured toplastically deform to clamp the weight member in place at the shellportion.

In one implementation, a method for making a golf club head can compriseproviding a head body of the golf club head, providing a weight member,providing a shell portion configured to couple with a body opening ofthe head body, coupling the weight member to the shell portion, andcoupling the shell portion to the body opening. Providing the shellportion can comprises providing an interior side of the shell portionconfigured to face an interior cavity of the head body, and providing abracket coupled to the interior side of the shell portion, the bracketcomprising a malleable lip. Providing the weight member can compriseproviding the weight member with a density greater than a density of thebracket and greater than a density of the shell portion, and providingthe weight member with a hardness greater than a hardness of the bracketand greater than a hardness of the shell portion. Coupling the weightmember to the shell portion can comprise inserting the weight memberinto the bracket, and clamping the weight member to the bracket byplastically deforming the malleable lip over at least an inner portionof the weight member, the inner portion of the weight member configuredto face towards the interior cavity of the head body. Coupling the shellportion to the body opening can comprise fully containing the weightmember and the bracket within the interior cavity of the head body.

In one embodiment, a golf club head can comprise a head body bounding aninterior cavity and comprising a body opening, a shell portionconfigured to couple to the body opening, and a weight memberencapsulated within the shell portion. The shell portion can comprisefirst and second shell sides opposite each other, and a capsule definedbetween the first and second shell sides and containing the weightmember. A density of the weight member can be greater than a density ofthe shell portion and a density of the head body. The first shell side,the capsule, and the weight member, can be internal to the interiorcavity. When encapsulated, the weight member can be configured to remainsubstantially within the capsule of the shell portion. The shell portioncan comprise at least a portion of a sole of the golf club head, and canbe located closer to a front portion of the head body than a rearportion of the head body. The weight member can comprise a weight mass,a weight thickness, and a weight volume. The weight thickness can be (a)less than approximately 6.4 mm if the golf club head can comprise afairway-wood-type head, (b) less than approximately 5.5 mm if the golfclub head can comprise a driver-type head, or (c) less thanapproximately 8.5 mm if the golf club head can comprise a hybrid-typehead. The weight volume can be (a) less than approximately 15 cc if thegolf club head can comprise the fairway-wood-type head, (b) less thanapproximately 12 cc if the golf club head can comprise the a driver-typehead, or (c) less than approximately 20 cc if the golf club head cancomprise the hybrid-type head. A specific gravity of the weight membercan be of approximately 18 to 20. A material of the weight member can beat least one of a tungsten material, a nickel material, a cadmiummaterial, a copper material, or a metal-infused plastic material. Theshell portion can comprise at least one of a steel material, or atitanium material. The weight member can adjust a center of gravity ofthe golf club head (a) at least 0.38 mm towards the sole if the golfclub head can comprise the fairway-wood-type head, (b) at least 0.25 mmtowards the sole if the golf club head can comprise the driver-typehead, or (c) at least 0.4 mm towards the sole if the golf club head cancomprise the hybrid-type head. The weight mass can be (a) at leastapproximately 9.5% of a mass of the golf club head if the golf club headcan comprise the fairway-wood-type head, (b) at least approximately 3%of the mass of the golf club head if the golf club head can comprise thedriver-type head, or (c) at least approximately 12% of the mass of thegolf club head if the golf club head can comprise the hybrid-type head.The weight volume can be (a) at most approximately 14% of a volume ofthe golf club head if the golf club head can comprise thefairway-wood-type head, (b) at most approximately 5% of the volume ofthe golf club head if the golf club head can comprise the driver-typehead, or (c) at most approximately 30% of the volume of the golf clubhead if the golf club head can comprise the hybrid-type head.

In one embodiment, a golf club head can comprise a head body bounding aninterior cavity and comprising a body opening, a shell portionconfigured to couple to the body opening, and a weight memberencapsulated within the shell portion. The shell portion can comprise afirst shell side, a second shell side opposite the first shell side, anda capsule defined between the first and second shell sides andcontaining the weight member. A density of the weight member can begreater than a density of the shell portion.

In one implementation, a method for making a golf club head can compriseproviding a head body of the golf club head, providing a weight member,providing a shell portion configured to couple with a body opening ofthe head body, coupling the weight member to the shell portion, andcoupling the shell portion to the body opening. Providing the shellportion can comprise providing a first shell side configured to face aninterior cavity of the head body, providing a second shell side oppositethe first shell side, and providing a capsule between the first andsecond shell sides to contain the weight member. A density of the weightmember can be greater than a density of the shell portion.

Other examples and embodiments are further disclosed herein. Suchexamples and embodiments may be found in the figures, in the claims,and/or in the present description.

A. Multi-Density Weight Comprising a Bracket and a Weight Member

Turning to the drawings, FIG. 22 illustrates a side cross-sectional viewof golf club head 51000 along line I-I of FIG. 23, with shell portion51300 coupled thereto. FIG. 23 illustrates a bottom view of golf clubhead 51000. FIG. 24 illustrates a side cross-sectional view of golf clubhead 51000 without shell portion 51300 (FIGS. 22-23) at body opening51190.

In the present example, golf club head 51000 comprises head body 51100bounding a portion of interior cavity 51200, and also comprises shellportion 51300 coupled to head body 51100 at body opening 51190. Bodyopening 51190 provides an aperture at sole portion 51110 of head body51100 to interior cavity 51200, but there can be other embodiments wherebody opening 51190 could be located at other portions of head body51100, such as at crown portion 51120, front portion 51130, rear portion51140, and/or skirt portion 52150 (FIG. 23), to receive thereatrespective shell portions similar to shell portion 51300.

Golf club head 51000 also comprises weight member 51400 coupled to shellportion 51300 via bracket 51310, where bracket 51310 comprises cavity54370 (FIG. 25) complementary to the shape of weight member 51400. Inthe present example, a density of weight member 51400 is greater than adensity of bracket 51310 and greater than a density of shell portion51300, such that weight member 51400 will permit adjustment of a centerof gravity of golf club head 51000 when coupled to head body 51100.Weight member 51400 and bracket 51310 are fully contained withininterior cavity 51200, such as to maintain the exterior view aspect ofgolf club head 51000 if desired. There may be other embodiments,however, where bracket 51310 could instead face forwards or be exposedat an exterior of golf club head 51000 and/or couple weight member 51400externally to golf club head 51000. Bracket 51310 can be integral withor non-integral with shell portion 51300.

Weight member 51400 can comprise a material with a weld-aversecharacteristic that can be substantially non-weldable to a material ofhead body 51100. For instance, the weld-averse characteristic can entaila propensity for becoming brittle or for cracking after welding orbrazing. In one example, weight member 51400 can comprise a tungstenmaterial, a nickel material, a cadmium material, a copper material, agold material, and/or another high density material, where suchmaterial(s) may be substantially pure, dense alloys thereof, orcomposites thereof, and/or where such materials can comprise a specificgravity greater than approximately 14, such as a specific gravity ofapproximately 18-20. In one example, one such composite material cancomprise a metal-infused plastic and/or resin, such as an infusedthermoplastic urethane material having tungsten, nickel, cadmium,copper, gold, and/or other dense metal particles. In the same or otherembodiments, a material of shell portion 51300 and/or a material of headbody 51100, such as at perimeter 52191 (FIG. 23) of body opening 51190,may comprise a lower density material, such as a steel material or atitanium material, that would be substantially incompatible for reliablywelding or brazing with the material of weight member 51400.

In light of the above, bracket 51310 is configured to secure weightmember 51400 in place at shell portion 51300 in a non-welded andnon-brazed manner, where shell portion 51300 can be welded or brazed tohead body 51100 at perimeter 52191 (FIGS. 2-3) of body opening 51190. Inthe present example, bracket 51310 comprises malleable lip 51311 tosecure weight member 51400 in place, as further described below, and isthus configured to secure weight member 51400 to shell portion 51300without the need to rely on screw(s), adhesive(s), rivet(s), welding, orbrazing. In this present example, weight member 51400 is coupled orsecured to shell portion 51300 only by using malleable lip 51311 tophysically keep weight member 51400 against shell portion 51300.

FIG. 25 illustrates a side cross-sectional view of weight member 51400prior to coupling to bracket 51310 of shell portion 51300. FIG. 26illustrates a side cross-sectional view of weight member 51400 securedto bracket 51310 after swedging by press 55500. In the present example,weight member 51400 comprises shell end 54410 configured to face shellportion 51300, and interior end 54420 opposite shell end 54410 andconfigured to face interior cavity 51200 (FIG. 22) of golf club head51000 (FIG. 22) when shell portion 51300 is coupled to body opening51190 (FIG. 22). As seen in FIG. 25, malleable lip 51311 is initiallyupright to permit weight member 51400 to be inserted into bracket 51300,but as seen in FIG. 26, is configured to fold over at least a portion ofa perimeter of interior end 54420 of weight member 51400 to therebysecure weight member 51400 to shell portion 51300.

Returning to FIG. 25, interior end 54420 of weight member 51400 alsocomprises interior end surface 54421 and chamfer transition 54425between interior end surface 54421 and weight sidewall 54450 of weightmember 51400. As seen in FIG. 26, malleable lip 51311 of bracket 51310is configured to substantially conform to a shape complementary tochamfer transition 54425 when pressed by press 55500 against weightmember 51400. Chamfer transition 54425 thus allows malleable lip 51311to engage and secure weight member 51400 without placing undue stress onbracket 51300 and/or weight member 51400, and permits malleable lip51311 to conform to a predetermined thickness and shape to remainstructurally sound when pushed and deformed by press 55500 to permitproper securing of weight member 51400. In the present example,malleable lip 51311 of bracket 51310 is configured to fold over acrossan entirety of the perimeter of interior end 4420 of weight member51400. In this example, chamfer transition 54425 also extends across anentirety of the perimeter of interior end 54420 of weight member 51400.There can be other embodiments, however, where malleable lip 51311 canbe subdivide into several separate lips, which could each fold overrespective portions of the perimeter of interior end 54420 of weightmember 51400. There can also be other embodiments where chamfertransition 54425 could be entirely or partially absent from weightmember 51400, such that malleable lip 51311 would fold directly overpart of interior end surface 54421 of weight member 51400 when pushedand deformed by press 55500.

In the present embodiment of FIG. 26, shell portion 51300 is shownpressed by press 55500 against die 55600, where die 55600 is configuredto shape shell exterior 51320 of shell portion 51300 to a predeterminedshape. The predetermined shape imparted to shell exterior 51320 by die55600 can be configured to match a contour of head body 51100, and/or toalign a perimeter of shell portion 51300 for proper bonding withperimeter 52191 (FIGS. 23-24) of body opening 51190 (FIGS. 23-24). Insome examples, press 55500 can comprise a 60-120 ton press. In the sameor other examples, shell exterior 51320 can be shaped to itspredetermined shape against die 55600 concurrently as press 55500compresses malleable lip 51311 against weight member 51400.

Weight member 51400 can be configured to remain substantially undeformedin the present embodiment when malleable lip 51311 of bracket 51310 ispushed against it by press 55500. In some examples, the chamfertransition 54425 can permit better distribution of compression stressesfrom press 55500 as malleable lip 51131 is compressed over interior end54420 of weight member 51400. In the same or other examples, thestructure and/or density of the material of weight member 51400 isresilient enough to withstand deformation and/or structural degradationfrom press 55500, where such strength characteristics would not beotherwise possible if weight member 51400 were limited to comprisinginstead a weaker or less dense alloy suitable for welding or brazing tobody 51100 (FIG. 22).

Because of the use of bracket 51310 and shell portion 51300, weightmember 51400 can have a high density notwithstanding its weld-aversecharacteristics with respect to the material of body 51100. Such highdensity can permit a volume and thickness 51490 (FIG. 25) of weightmember 51400 to be minimized for more precise location and adjustment ofone or more characteristics of golf club head 51000.

In light of the above, in one example, such as for a fairway-wood-typeclub head similar to golf club head 51000, weight member 51400 cancomprise a mass of approximately 25 grams to 125 grams, a volume lessthan approximately 15 cc, and/or a thickness less than of approximately6.4 mm. In such an example, the golf club head 51000 can comprise avolume of approximately 110 cc to approximately 250 cc, and/or a mass ofapproximately 200 grams to approximately 240 grams. Additionally, forsuch examples, weight member 51400 can comprise a weight mass of atleast approximately 9.5% of the mass of golf club head 51000, and/or aweight volume of at most approximately 14% of the volume of golf clubhead 51000.

In another example, such as for a driver-type club head otherwisesimilar to golf club head 51000, a weight member similar to weightmember 51400 can comprise a mass of approximately 15 grams to 60 grams,a volume less than approximately 12 cc, and/or a thickness less than ofapproximately 5.5 mm. In such an example, the golf club head 51000 cancomprise a volume of approximately 300 cc to approximately 600 cc,and/or a mass or approximately 170 grams to approximately 230 grams.Additionally, for such examples, the weight member can comprise a weightmass of at least approximately 3% of the mass of golf club head 51000,and/or a weight volume of at most approximately 5% of the volume of golfclub head 51000.

In another example, such as for a hybrid-type club head otherwisesimilar to golf club head 51000, a weight member similar to weightmember 51400 can comprise a mass of approximately 30 grams to 140 grams,a volume less than approximately 20 cc, and/or a thickness less than ofapproximately 8.5 mm. In such an example, the golf club head 51000 cancomprise a volume of approximately 70 cc to approximately 200 cc, and/ora mass or approximately 210 grams to approximately 260 grams.Additionally, for such examples, the weight member can comprise a weightmass of at least approximately 12% of the mass of golf club head 51000,and/or a weight volume of at most approximately 30% of the volume ofgolf club head 51000.

Considering the above and returning to FIG. 22, because the thicknessand/or volume of weight member 51400 is minimized, compared with anotherweight member made of a less dense material or alloy, more of the massof weight member 51400 will be closer to shell exterior 51320 of shellportion 51300, thereby permitting greater adjustment of a center ofgravity of golf club head 51000 than would be possible with a weldablebut less dense weight member.

In one example, such as for a fairway-wood-type club head similar togolf club head 51000, center of gravity 51510 of golf club head 51000can be adjusted by weight member 51400, from non-adjusted center ofgravity location 51511 to adjusted center of gravity location 51512, byapproximately 0.38 mm to approximately 0.9 mm towards sole portion51110. Center of gravity 51510 can is also adjusted towards frontportion 51130 in the present example, where such adjustment can enhancethe launch characteristics of the fairway-wood-type club head byreducing the amount of clubhead rotation that takes place during theimpact with a golf ball. By reducing the clubhead rotation, more of thekinetic energy of the club can be transferred to the golf ball, whichcan lead to higher ball velocity and reduced backspin for increaseddistance and/or accuracy.

In another example, such as for a driver-type club head otherwisesimilar to golf club head 51000, the center of gravity of thedriver-type club head can be adjusted towards its sole by weight member51400 by approximately 0.25 mm to approximately 0.80 mm. In anotherexample, such as for a hybrid-type club head otherwise similar to golfclub head 51000 (FIG. 22), the center of gravity of the hybrid-type clubhead can be adjusted towards its sole by weight member 51400 byapproximately 0.40 mm to approximately 1.2 mm.

Although in the present example shell portion 51300 and weight member51400 are shown in FIGS. 22-23 located towards sole portion 51110 andfront portion 51130 of head body 51100, there can be other embodimentswhere shell portion 51300 and weight member 51400 could be locatedtowards other portions of head body 51100, such as towards crown portion51120, rear portion 51140, and/or skirt portion 52150 depending on thefeature or characteristic of golf club head 51000 desired to beadjusted. In addition, although shell portion 51300 is shown ascomprising a portion of sole portion 51110, there can be otherembodiments where shell portion 51300 comprises substantially all,and/or an entirety of, sole portion 51110. Furthermore, although weightmember 51400 (FIGS. 22-23, 25-26), bracket cavity 54370 (FIG. 25), andshell portion 51300 (FIGS. 22-23, 25-26) are shown as comprisingsubstantially circular shapes, there can be other embodiments whereweight member 51400, bracket cavity 54370, and/or shell portion 51300can comprise other shapes such as rectangular shapes, pentagonal shapes,shield shapes, and/or shapes tailored to conform to a contour of atleast part of golf club head 51000.

After weight member 51400 has been secured via malleable lip 51311 tobracket 51310, as described above, shell portion 51300 can be coupled tobody opening 51190 to seal interior cavity 51200 of golf club head51000. For instance, shell portion 51300 can be secured to perimeter52191 (FIG. 23) of body opening 51190 (FIGS. 22-24) via welding orbrazing, such as with weld bead 51610 (FIG. 22). In the present example,for a better bond, weld bead 51610 couples shell portion 51300 to bodyopening 51190 throughout a total thickness of the perimeter of shellportion 51300 (FIGS. 22-23) at body opening 51190.

In the present example, bracket 51310 and shell portion 51300 cancomprise the same material, both being cast, forged, or otherwise formedfrom a single piece of the same material. Also in the present example,shell portion 51300 can comprises the same material as used to formperimeter 52191 (FIG. 23) of body opening 51190, such as a titaniummaterial, a steel material, and/or a zirconium material. Accordingly,shell portion 51300 can be readily welded or brazed to perimeter 52191of body opening 51190. There also can be examples where shell portion51300 can comprise a material with a density greater than the density ofhead body 51100, such as a tungsten alloy with a specific gravityapproximately 10 to 12, configured to be welded or brazed to perimeter52191 (FIG. 23) of body opening 51190.

B. Multi-Density Weight Comprising Two Shell Sheets and a Weight Member

Continuing with the figures, FIG. 27 illustrates a side cross-sectionalview of golf club head 56000. Golf club head 56000 can be similar togolf club head 51000 (FIGS. 22-24), but comprises shell portion 56300instead of shell portion 51300 (FIGS. 1-2, 4-5). Shell portion 56300 canbe similar to shell portion 51300. For example shell portion 56300 cancomprise dimensions similar to those shown or described with respect toshell portion 51300 (FIGS. 22-23, 25-26). In addition, shell portion56300 can be located to comprise at least a portion of, and/or anentirety of, one or more portions of head body 51100, such as soleportion 51110, crown portion 51120, front portion 51130, rear portion51140, and/or the skirt portion.

Shell portion 56300 differs from shell portion 51300, however, withrespect to the way weight member 51400 couples to shell portion 56300.Whereas shell portion 51300 relied on bracket 51310 and malleable lip51311 to secure weight member 51400 in FIGS. 22-26, shell portion 56300comprises weight member 51400 encapsulated between shell sheet 56310 andshell sheet 56320. In the present example, shell portion 56300comprises: (a) shell sheet 56310 having a side thereof facing interiorcavity 51200, and (b) shell sheet 56320 opposite shell sheet 56310 andhaving a side thereof facing towards an exterior of shell portion 56300,where capsule 56370 is defined between shell sheets 56310 and 56320 tocontain weight member 51400. The density of weight member 51400 isgreater than the density of either of shell sheets 56310 and 56320 ofshell portion 56300.

FIG. 28 illustrates a side cross-sectional view of weight member 51400prior to encapsulation within shell portion 56300. FIG. 29 illustrates aside cross-sectional view of weight member 51400 after encapsulationwithin shell portion 56300 by press 57500 and die 58500. Shell sheet56310 comprises shell sheet capsule section 57311 defining a portion ofcapsule 56370, and shell sheet periphery section 57312 bounding shellsheet capsule section 57311. Shell sheet 56320 comprises shell sheetcapsule section 57321 defining a portion of capsule 56370, and shellsheet periphery section 57322 bounding shell sheet capsule section57321. When shell sheets 56310 and 56320 are pressed against each otherby press 57500 to encapsulate weight member 51400, shell sheet capsulesection 57311 of shell sheet 56310 is stamped over weight member 51400to conform to a shape thereof. As a result, capsule 56370 is thusdefined and bounded between shell sheet capsule sections 57311 and57321, and shell sheet periphery sections 57321 and 57322 are broughttogether to seal weight member 51400 within capsule 56370, where shellsheet periphery section 57312 conforms to shell sheet periphery section57322 in the present example. In some examples, weight member 51400 canbe configured to remain substantially undeformed when shell sheet 65310is stamped over it. As can be seen in FIGS. 27 and 29, shell sheets56310 and/or 56320 need not completely conform to the shape of weightmember 51400, and one or more capsule voids 56371 can remain withincapsule 56373 after weight member 51400 is securely encapsulatedtherein. There can be other examples, however, where weight member 51400can be configured to deform when shell sheet 56310 is stamped overweight member 51400, so that shell sheet 56310 can better conform to theshape of weight member 51400 and/or to minimize the volume of one ormore of capsule voids 56371.

Die 58600 (FIG. 29) is similar to die 55600 (FIG. 26), and is configuredto impart a predetermined shape to the exterior of shell sheet 56320,similar to the predetermined shape described above for shell exterior51320 (FIG. 26), when shell portion 56300 is pressed between press 57500and die 58600 (FIG. 29). In other examples, however, shell sheets 56310and/or 56320 may be separately pre-shaped prior to being coupledtogether, and could then be brought together around weight member 51400without press 57500.

Once cavity 56370 has been defined around weight member 51400, shellsheet periphery sections 57312 and 57322 can be secured to each other ifdesired, such as by spot-welding, prior to coupling shell portion 51300to body opening 51190. In addition, because the shape of capsule 56370between shell sheets 56310 and 56311 conforms to the shape of weightmember 51400, weight member 51400 can thus be secured to shell portion56300 without having to rely on welding, brazing, screws, rivets, oradhesives. In this present example, weight member 51400 is coupled orsecured to shell portion 56300 only by using shell portion 56300 itself(and optionally, spot welding, etc. for shell portion 56300).

With weight member 51400 encapsulated within cavity 56370 between shellsheets 56310 and 56320 as described above, shell portion 56300 can becoupled to body opening 51190 of head body 51100 as seen in FIG. 27, andas described above with respect to shell portion 51300 (FIGS. 22-24). Insome examples, if welding or brazing shell portion 56300 to body opening51190, such as via weld bead 51610, a total thickness of the perimeterof each of shell sheets 56310 and 56320 can be welded or brazed to theperimeter of body opening 51190 for a better bond and/or to furthersecure shell sheet periphery sections 57312 and 57322 to each other.Once shell portion 56300 is secured to body opening 51190, shell sheet56310, weight member 51400, and capsule 56370 can be fully internal tointerior cavity 51200 of golf club head 56000 in the present embodiment.

In some examples, the material, mass, thickness, and/or volume forweight member 51400 as used in the embodiment of FIGS. 27-30 can besimilar to one or more of those described above with respect to theembodiment of FIGS. 22-26. In the same or other examples, thematerial(s) of shell sheets 56310 and/or 56320 of shell portion 56300can be similar to those described above with respect to shell portion51300 (FIGS. 22-23, 25-26).

In the same or other examples, a center of gravity of golf club head56000 may be adjusted by weight member 51400 and/or shell portion 56300as described above with respect to the center of gravity 51510 of golfclub head 51000 (FIG. 22). The mass, volume, and thickness rangesdescribed earlier for golf club head 51000 (FIG. 22) can also apply hereto golf club head 56000.

Shell sheets 56310 and 56320 may comprise the same materials ordifferent materials, depending on the embodiment. For instance, thematerial(s) for shell sheets 56310 and/or 56320 can comprise steel,titanium, zirconium, alloys thereof, and/or other weldable alloys suchas a weldable tungsten nickel alloy. In some examples, to better conformto the shape of weight member 51400 when pressed by press 57500 (FIG.28), shell sheet 56310 may be configured to comprise greaterdeformability than shell sheet 56320. For instance, the material ofshell sheet 56310 can be less dense, more ductile, and/or more malleablethan the material of shell sheet 56320. In the same or otherembodiments, the thickness of shell sheet 56310 can be configured to beless than the thickness of shell sheet 56320 to better conform to theshape of weight member 51400. The thickness of shell sheet 56310 and/orshell sheet 56320 can be of at least approximately 4.5 mm in someimplementations to permit proper welding via weld bead 51610.

C. Multi-Density Weight Comprising Two Shell Sheets with a Passagewayand a Weight Member

There can also be other embodiments where, after encapsulation, weightmember 51400 could still be not fully enclosed within shell portion56300, and or where weight member 51400 can still be visible from anexterior of golf club head 56000. As an example, FIG. 30 illustrates aportion of golf club head 59000 comprising body 51100 and shell portion59300 coupled thereto along with encapsulated weight member 59400. Shellportion 59300 can be similar to shell portion 51300 (FIGS. 25-26) and/orto shell portion 56300 (FIGS. 27-29), but comprises passageway or porthole 59321 at shell sheet 59320 through which weight member 59400 can beseen from an exterior of golf club head 59000. In the present example,weight member 59400 is similar to weight member 51400 (FIGS. 22, 25-29),and shell sheet 59320 comprises lip 59322 to prevent weight member 59400from dislodging from capsule 56370 through port hole 59321. Weightmember 59400 also occupies at least a portion of the volume of port hole59321 in the present example, where port hole 59321 thereby permits moreof the dense material of weight member 59400 to be closer to theexterior of shell portion 59300 for greater adjustment of the center ofgravity or other characteristics of golf club head 59000. Again, nowelding, brazing, screws, rivets, or adhesives are used to couple orsecure weight member 59400 to shell portion 59300. In this presentexample, weight member 59400 is coupled or secured to shell portion59300 only by using shell portion 59300 itself (and optionally, spotwelding, etc. for shell portion 59300).

In another embodiment, FIG. 31 illustrates a side cross-sectional viewof weight member 51400 encapsulated within shell portion 510300. Shellportion 510300 can be similar to one or more of shell portion 51300(FIGS. 22-23, 25-26), shell portion 56300 (FIGS. 27-29), and/or shellportion 59300 (FIG. 30). In the present example, however, shell portion510300 is configured to be cast within mold 510600, where the materialof shell portion 510300 can be introduced in liquid form to encapsulateand conform once hardened as a single piece of material to the shape ofweight member 51400 therewithin. Weight member 51400 can be held inplace within mold 510600 by one or more stands 510900, such as stands510910 and 510920, while the material of shell portion 510300 hardens.In some examples, the one or more stands 510900 can be part of, orprotrude from, weight member 51400 or mold 510600. Again, no welding,brazing, screws, rivets, or adhesives are used to couple or secureweight member 51400 to shell portion 510300. In this present example,weight member 51400 is coupled or secured to shell portion 510300 onlyby using shell portion 510300 itself.

D. Method of Forming a Multi-Density Weight Comprising a Shell Portionand a Weight Member

Moving on, FIG. 32 illustrates a flowchart for a method 511000, whichcan be used to provide, form, and/or manufacture a golf club head with aweighted shell portion in accordance with the present disclosure. Insome examples, the golf club head can be similar to one or more of thegolf club heads described herein. The weighted shell portion can besimilar to one or more of the shell portions described herein, such asshell portion 51300 (FIGS. 22-23, 25-26), shell portion 56300 (FIGS.27-29), shell portion 59300 (FIG. 30), and/or shell portion 510300 (FIG.31).

Method 511000 comprises block 511100 for providing a head body of thegolf club head. In some examples, the head body can be similar to a headbody of one of the embodiments described above, such as head body 1100(FIGS. 22-24, 27, 30). Although, in the figures above, head body 51100is illustrated as a fairway-wood type golf club head body, thedisclosure herein is not limited in that respect. For example, the headbody could comprise a driver-type head body, a hybrid-type head body, aniron-type or wedge-type head body, or a putter-type head body in someimplementations.

Block 511200 of method 511000 comprises providing a weight member. Insome examples, the weight member can be similar to weight member 51400as described above with respect to the embodiments of FIGS. 22-29 and31, to weight member 59400 in the embodiment of FIG. 30, and/or to othersimilar weight members. The density of the weight member can beconfigured to be greater than the density of any other portion of thegolf club head. In some examples, the weight member can comprise amaterial similar to those described above for weight member 51400, witha density greater than approximately 14. For instance, the weight membercan comprise a material with a specific gravity of approximately 18 toapproximately 20.

Block 511300 of method 511000 comprises providing a shell portionconfigured to couple with a body opening of the head body. In someexamples, the shell portion can be similar to one or more of the shellportions described above, such as shell portion 51300 (FIGS. 22-23,25-26), shell portion 56300 (FIGS. 27-29), shell portion 59300 (FIG.30), and/or shell portion 510300 (FIG. 31). The shell portion can beconfigured to couple the weight member of block 511200 to the head bodyof block 511100. Blocks 511100, 511200, and 511300 can be performed inany sequence and/or simultaneously with each other.

In some embodiments, the shell portion can be similar to shell portion51300 (FIGS. 22-23, 25-26), comprising an interior side configured toface an interior cavity of the head body, such as cavity 51200 of headbody 51100 (FIG. 22). A bracket with a malleable lip, which can besimilar to bracket 51310 with malleable lip 51311 (FIGS. 22, 25-26), canbe provided coupled to the interior side of the shell portion. The shellportion and the bracket may comprise a single piece of the samematerial, and/or may be formed concurrently in some embodiments. Inanother embodiment, the shell portion can be similar to shell portion56300 (FIGS. 27-29) and/or shell portion 59300 (FIG. 30), comprising afirst shell sheet similar to shell sheet 56310 configured to face theinterior cavity of the shell body, and a second shell sheet similar toshell sheet 56320 (FIG. 27) or shell sheet 59320 (FIG. 30), where thefirst and second shell sheets can be configured to define a capsuletherebetween to contain the weight member of block 511200. In anotherembodiment, the shell portion, such as shell portion 510300 (FIG. 31),can be provided to be cast around the weight member of block 511200.

Next, block 511400 of method 511000 comprises coupling the weight memberto the shell portion. In some examples, the weight member can be coupledto the shell portion as described above for one or more of theembodiments described with respect to FIGS. 22-31. In some examples, theshell portion can comprise a material similar to those described abovewith respect to shell portion 51300 (FIGS. 22-23, 25-26), to which thematerial of the weight member of block 511200 would be hard to reliablyweld or braze. Accordingly, the shell portion can be configured tosecure the weight member to the shell portion by welding or brazing theweight member. In addition, in the same or other examples, the weightmember can be secured to the shell portion in a non-screwed,non-riveted, and non-adhesive manner for better reliability, durability,and resistance to impact stresses.

For instance, the weight member can be coupled to the shell portion byinserting the weight member into a bracket similar to bracket 51310(FIGS. 22, 25-26), and can be secured thereto by compressing a malleablelip against an interior end of the weight member, similar to malleablelip 51311 as compressed against the interior end 54420 of weight member51400 described above with respect to FIGS. 22-26.

In another example, the weight member can be coupled to the shellportion by encapsulation between two shell sheets, such as shell sheets56310 and 56320 (FIGS. 27-29), or such as shell sheets 56310 and 59320(FIG. 30). In the same or other examples, such encapsulation can be madeby compressing and/or stamping the shell sheets against the weightmember using a press and/or a die similar to press 57500 and/or die58600 (FIGS. 28-29). There also can be other examples where one or moreof the shell sheets can be pre-stamped or pre-formed with respect to theshape of the weight member prior to being coupled together toencapsulate the weight member. In another example, the weight member canbe coupled to the shell portion by casting the material of the shellportion in liquid form around the weight member using a mold, and thenhardening the material of the shell portion to encapsulate the weightmember, as described above with respect to FIG. 31.

Next, block 511500 of method 511000 comprises coupling the shell portionof block 511300 to a body opening of the head body of block 511100. Insome embodiments, the body opening of the head body can be similar tobody opening 51190 (FIGS. 22, 24) of head body 51100, but there can beother embodiments where the body opening can be located elsewherebesides at the sole of the golf club head, such as towards a crownportion, a rear portion, and/or a front portion of the golf club head.In the same or other embodiments, the shell portion can be secured to aperimeter of the body opening by welding or brazing, as described abovewith respect to the coupling of one or more of the shell portionsdescribed in FIGS. 22-31 to perimeter 52191 of body opening 51190 (FIGS.23-24). Although in some examples a material of the shell portion ofblock 511300 can be the same as that of the head body of block 511100 atthe perimeter of the body opening thereof, there can be otherembodiments where the material of the shell portion can be more densethan the material of the head body while still remaining weldable orbrazeable thereto. In some embodiments, a shell exterior of the shellportion can be configured, via a die, a mold, or other suitablemechanism, to match a contour of the head body when coupled thereto inblock 511500.

Because of the high density of the weight member of block 511200permitted by the use of the shell portion of block 511300, a mass of theweight member can be maximized while minimizing the volume or thicknessof the weight member for more precise location and dramatic adjustmentof a center of gravity or other characteristics of the golf club head ofmethod 511000. In some examples, the mass and volume relationshipsbetween the weight member of block 511200 and the golf club head ofmethod 511000 can be similar to those described above with respect toweight member 51400 and the golf club heads of FIGS. 22-31). Inaddition, the location of the center of gravity of the golf club head ofmethod 511000 can be adjusted by the weight member of block 511200similar to the adjustments described above for the golf club heads ofFIGS. 22-31 by weight members 51400 and 59400.

In some examples, one or more of the different blocks of method 511000can be combined into a single block or performed simultaneously, and/orthe sequence of such blocks can be changed. For example, in someembodiments, two or more of blocks 511100, 511200, or 511300 may becombined if desired. In the same or other examples, some of the blocksof method 511000 can be subdivided into several sub-blocks. As anexample, block 511100 may be subdivided with respect to providing and/orcoupling together several portions of the head body, such as forcoupling a face plate to the front portion of the head body. There canalso be examples where method 511000 can comprise further or differentblocks. As an example, method 511000 may comprise another block forpolishing the junction between the shell portion and the body opening toconform to an external contour of the golf club head.

In addition, there may be examples where method 511000 can comprise onlypart of the steps described above. For instance, method 511000 maycomprise only blocks 511200-511400, without having to provide the headbody in block 511100 and without having to provide the golf club head incompleted form. Other variations can be implemented for method 511000without departing from the scope of the present disclosure.

Although the golf club weight attachment mechanisms and related methodsherein have been described with reference to specific embodiments,various changes may be made without departing from the spirit or scopeof the present disclosure. As an example, there may be embodiments wherethe weight attachment mechanisms described herein can be implemented iniron-type, wedge-type, and/or putter-type golf club heads having aninterior cavity configured to accommodate a shell portion and a weightmember similar to those described herein. Additional examples of suchchanges and others have been given in the foregoing description. Otherpermutations of the different embodiments having one or more of thefeatures of the various figures are likewise contemplated. Accordingly,the specification, claims, and drawings herein are intended to beillustrative of the scope of the disclosure and is not intended to belimiting. It is intended that the scope of this application shall belimited only to the extent required by the appended claims.

The golf club weight attachment mechanisms and related methods discussedherein may be implemented in a variety of embodiments, and the foregoingdiscussion of certain of these embodiments does not necessarilyrepresent a complete description of all possible embodiments. Rather,the detailed description of the drawings, and the drawings themselves,disclose at least one preferred embodiment, and may disclose alternativeembodiments.

All elements claimed in any particular claim are essential to theembodiment claimed in that particular claim. Consequently, replacementof one or more claimed elements constitutes reconstruction and notrepair. Additionally, benefits, other advantages, and solutions toproblems have been described with regard to specific embodiments. Thebenefits, advantages, solutions to problems, and any element or elementsthat may cause any benefit, advantage, or solution to occur or becomemore pronounced, however, are not to be construed as critical, required,or essential features or elements of any or all of the claims, unlesssuch benefits, advantages, solutions, or elements are expressly statedin such claims.

As the rules to golf may change from time to time (e.g., new regulationsmay be adopted or old rules may be eliminated or modified by golfstandard organizations and/or governing bodies such as the United StatesGolf Association (USGA), the Royal and Ancient Golf Club of St. Andrews(R&A), etc.), golf equipment related to the apparatus, methods, andarticles of manufacture described herein may be conforming ornon-conforming to the rules of golf at any particular time. Accordingly,golf equipment related to the apparatus, methods, and articles ofmanufacture described herein may be advertised, offered for sale, and/orsold as conforming or non-conforming golf equipment. The apparatus,methods, and articles of manufacture described herein are not limited inthis regard.

While the above examples may be described mostly in connection withfairway-wood type golf club heads, the apparatus, methods, and articlesof manufacture described herein may be applicable to other types of golfclub such as a driver-type golf club, an iron-type golf club, awedge-type golf club, or a putter-type golf club. Alternatively, theapparatus, methods, and articles of manufacture described herein may beapplicable other type of sports equipment such as a hockey stick, atennis racket, a fishing pole, a ski pole, etc.

Moreover, embodiments and limitations disclosed herein are not dedicatedto the public under the doctrine of dedication if the embodiments and/orlimitations: (1) are not expressly claimed in the claims; and (2) are orare potentially equivalents of express elements and/or limitations inthe claims under the doctrine of equivalents.

Clause 1. A golf club head comprising: a body comprising a receptacle; amulti-density weight comprising: a first weight component comprising afirst density; and a second weight component comprising a second densitygreater than the first density; wherein: the first weight component isconfigured to receive the second weight component; the multi-densityweight is configured to couple to with the receptacle; the first weightcomponent comprises a tungsten alloy; the second weight componentcomprises a tungsten alloy having a weld-averse trait with respect tothe body; the second weight component is at least partially bounded bythe first weight component; and a thickness of the first weightcomponent around the second weight component is at least 0.075 inches.

Clause 2. The golf club head of clause 1, wherein the second weightcomponent is coupled to the first weight component with a swedged bond.

Clause 3. The golf club head of clause 1, wherein the multi-densityweight is coupled to the receptacle of the body with a weld bond.

Clause 4. The golf club head of clause 1, wherein the multi-densityweight is coupled to the receptacle of the body with a brazed bond.

Clause 5. The golf club head of clause 1, wherein the second weightcomponent comprises greater than 70% of a total volume of themulti-density weight.

Clause 6. The golf club head of clause 1, wherein the multi-densityweight forms a portion of a backside of the body.

Clause 7. The golf club head of clause 1, wherein the multi-densityweight forms portion of a backside and a toe region of the body.

Clause 8. The golf club head of clause 1, wherein the multi-densityweight forms a portion of a backside, a toe region, and a sole region ofthe body.

Clause 9. The golf club head of clause 1, wherein the multi-densityweight forms a portion sole region and a toe region of the body.

Clause 10. The golf club head of clause 1, wherein the first weightcomponent comprises a density of less than 13 g/cm³ and the secondweight component comprises a density of greater than 11 g/cm³.

Clause 11. A golf club head comprising: a body comprising a receptacle;a multi-density weight comprising: a first weight component comprising afirst density; and a second weight component comprising a second densitygreater than the first density; wherein: the first weight component isconfigured to receive the second weight component; the multi-densityweight is configured to couple to with the receptacle; the first weightcomponent comprises a tungsten alloy; the second weight componentcomprises a tungsten alloy having a weld-averse trait with respect tothe body; the first weight component partially bounds the second weightcomponent; a thickness of the first weight component around the secondweight component is at least 0.075 inches; and the multi-density weightforms a portion sole region and a toe region of the body.

Clause 12. The golf club head of clause 11, wherein the second weightcomponent is coupled to the first weight component with a swedged bond.

Clause 13. The golf club head of clause 11, wherein the multi-densityweight is coupled to the receptacle of the body with a weld bond.

Clause 14. The golf club head of clause 11, wherein the multi-densityweight is coupled to the receptacle of the body with a brazed bond.

Clause 15. The golf club head of clause 11, wherein the second weightcomponent comprises greater than 70% of a total volume of themulti-density weight.

Clause 16. The golf club head of clause 11, wherein the first weightcomponent completely bounds the second weight component.

Clause 17. The golf club head of clause 11, wherein the multi-densityweight forms portion of a backside and a toe region of the body.

Clause 18. The golf club head of clause 11, wherein the multi-densityweight forms a portion of a backside, a toe region, and a sole region ofthe body.

Clause 19. The golf club head of clause 11, wherein the first weightcomponent comprises a density of less than 13 g/cm³ and the secondweight component comprises a density of greater than 11 g/cm³.

Clause 20. The golf club head of clause 11, wherein the first weightcomponent completely bounds the second weight component.

The invention claimed is:
 1. A golf club head comprising: a bodycomprising a receptacle; a multi-density weight comprising: a firstweight component comprising a first density; and a second weightcomponent comprising a second density greater than the first density;wherein: the first weight component is configured to receive the secondweight component; the multi-density weight is configured to couple towith the receptacle; the first weight component comprises a tungstenalloy; the second weight component comprises a tungsten alloy having aweld-averse trait with respect to the body; the second weight componentis at least partially bounded by the first weight component; and athickness of the first weight component around the second weightcomponent is at least 0.075 inch.
 2. The golf club head of claim 1,wherein the second weight component is coupled to the first weightcomponent with a swedged bond.
 3. The golf club head of claim 1, whereinthe multi-density weight is coupled to the receptacle of the body with aweld bond.
 4. The golf club head of claim 1, wherein the multi-densityweight is coupled to the receptacle of the body with a brazed bond. 5.The golf club head of claim 1, wherein the second weight componentcomprises greater than 70% of a total volume of the multi-densityweight.
 6. The golf club head of claim 1, wherein the multi-densityweight forms a portion of a backside of the body.
 7. The golf club headof claim 1, wherein the multi-density weight forms portion of a backsideand a toe region of the body.
 8. The golf club head of claim 1, whereinthe multi-density weight forms a portion of a backside, a toe region,and a sole region of the body.
 9. The golf club head of claim 1, whereinthe multi-density weight forms a portion of a sole region and a toeregion of the body.
 10. The golf club head of claim 1, wherein the firstweight component comprises a density of less than 13 g/cm³ and thesecond weight component comprises a density of greater than 11 g/cm³.11. A golf club head comprising: a body comprising a receptacle; amulti-density weight comprising: a first weight component comprising afirst density; and a second weight component comprising a second densitygreater than the first density; wherein: the first weight component isconfigured to receive the second weight component; the multi-densityweight is configured to couple to with the receptacle; the first weightcomponent comprises a tungsten alloy; the second weight componentcomprises a tungsten alloy having a weld-averse trait with respect tothe body; the first weight component partially bounds the second weightcomponent; a thickness of the first weight component around the secondweight component is at least 0.075 inch; and the multi-density weightforms a portion sole region and a toe region of the body.
 12. The golfclub head of claim 11, wherein the second weight component is coupled tothe first weight component with a swedged bond.
 13. The golf club headof claim 11, wherein the multi-density weight is coupled to thereceptacle of the body with a weld bond.
 14. The golf club head of claim11, wherein the multi-density weight is coupled to the receptacle of thebody with a brazed bond.
 15. The golf club head of claim 11, wherein thesecond weight component comprises greater than 70% of a total volume ofthe multi-density weight.
 16. The golf club head of claim 11, whereinthe first weight component completely bounds the second weightcomponent.
 17. The golf club head of claim 11, wherein the multi-densityweight forms a portion of a backside and a toe region of the body. 18.The golf club head of claim 11, wherein the multi-density weight forms aportion of a backside, a toe region, and a sole region of the body. 19.The golf club head of claim 11, wherein the first weight componentcomprises a density of less than 13 g/cm³ and the second weightcomponent comprises a density of greater than 11 g/cm³.